diff --git a/hyuunnn/.gitignore b/hyuunnn/.gitignore new file mode 100644 index 0000000..c2065bc --- /dev/null +++ b/hyuunnn/.gitignore @@ -0,0 +1,37 @@ +HELP.md +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ diff --git a/hyuunnn/build.gradle b/hyuunnn/build.gradle new file mode 100644 index 0000000..bbc36ca --- /dev/null +++ b/hyuunnn/build.gradle @@ -0,0 +1,23 @@ +plugins { + id 'java' + id 'org.springframework.boot' version '2.7.5' + id 'io.spring.dependency-management' version '1.0.15.RELEASE' +} + +group = 'com.hyuunnn' +version = '0.0.1-SNAPSHOT' +sourceCompatibility = '17' + +repositories { + mavenCentral() +} + +dependencies { + implementation 'org.springframework.boot:spring-boot-starter' + implementation 'org.jetbrains:annotations:20.1.0' + testImplementation 'org.springframework.boot:spring-boot-starter-test' +} + +tasks.named('test') { + useJUnitPlatform() +} diff --git a/hyuunnn/gradle/wrapper/gradle-wrapper.jar b/hyuunnn/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..249e583 Binary files /dev/null and b/hyuunnn/gradle/wrapper/gradle-wrapper.jar differ diff --git a/hyuunnn/gradle/wrapper/gradle-wrapper.properties b/hyuunnn/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..ae04661 --- /dev/null +++ b/hyuunnn/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/hyuunnn/gradlew b/hyuunnn/gradlew new file mode 100644 index 0000000..a69d9cb --- /dev/null +++ b/hyuunnn/gradlew @@ -0,0 +1,240 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +APP_NAME="Gradle" +APP_BASE_NAME=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/hyuunnn/gradlew.bat b/hyuunnn/gradlew.bat new file mode 100644 index 0000000..f127cfd --- /dev/null +++ b/hyuunnn/gradlew.bat @@ -0,0 +1,91 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%"=="" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%"=="" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if %ERRORLEVEL% equ 0 goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 0 goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/hyuunnn/settings.gradle b/hyuunnn/settings.gradle new file mode 100644 index 0000000..31ea44f --- /dev/null +++ b/hyuunnn/settings.gradle @@ -0,0 +1 @@ +rootProject.name = 'lotto' diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/GameInput.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/GameInput.java new file mode 100644 index 0000000..2f7c95e --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/GameInput.java @@ -0,0 +1,53 @@ +package com.hyuunnn.lotto; + +import static com.hyuunnn.lotto.Util.SCANNER; +import static com.hyuunnn.lotto.Util.strToArray; +import static com.hyuunnn.lotto.Util.strToInteger; +import static com.hyuunnn.lotto.Util.strToIntegerList; + +import com.hyuunnn.lotto.Validator.BonusNumberValidator; +import com.hyuunnn.lotto.Validator.PriceNumberValidator; +import com.hyuunnn.lotto.Validator.WinningNumberValidator; +import java.util.List; + +public class GameInput { + + public int inputPrice() { + while (true) { + try { + String strInputPrice = SCANNER.nextLine(); + PriceNumberValidator.validateNumber(strInputPrice); + return strToInteger(strInputPrice); + + } catch (Exception e) { + System.out.println(e.getMessage()); + } + } + } + + public List inputWinningNumber() { + while (true) { + try { + String strInputWinningNumber = SCANNER.nextLine(); + WinningNumberValidator.validateNumber(strToArray(strInputWinningNumber)); + return strToIntegerList(strInputWinningNumber); + + } catch (Exception e) { + System.out.println(e.getMessage()); + } + } + } + + public int inputBonusNumber(List winningNumberList) { + while (true) { + try { + String strInputBonusNumber = SCANNER.nextLine(); + BonusNumberValidator.validateNumber(winningNumberList, strInputBonusNumber); + return strToInteger(strInputBonusNumber); + + } catch (Exception e) { + System.out.println(e.getMessage()); + } + } + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/GamePlayer.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/GamePlayer.java new file mode 100644 index 0000000..a1fd130 --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/GamePlayer.java @@ -0,0 +1,85 @@ +package com.hyuunnn.lotto; + +import static com.hyuunnn.lotto.Util.MINIMUM_LOTTO_PRICE; +import static com.hyuunnn.lotto.Util.SCANNER; +import static com.hyuunnn.lotto.Util.getLottoCount; +import static com.hyuunnn.lotto.Util.randomize; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.HashMap; +import java.util.List; +import java.util.Optional; +import java.util.stream.IntStream; + +public class GamePlayer extends GameInput { + + private final List lottoList = new ArrayList<>(); + private WinningLotto winningLotto; + private int lottoCount; + + public void run() { + input(); + printResult(); + SCANNER.close(); + } + + private void input() { + System.out.println("구입 금액을 입력해주세요."); + addLotto(inputPrice()); + + System.out.println("지난 주 당첨번호를 입력해 주세요."); + List winningNumberList = inputWinningNumber(); + + System.out.println("보너스 볼을 입력해 주세요."); + int bonusNumber = inputBonusNumber(winningNumberList); + + winningLotto = new WinningLotto(new Lotto(winningNumberList), bonusNumber); + } + + private void addLotto(int price) { + lottoCount = getLottoCount(price); + System.out.printf("%d개를 구매했습니다.\n", lottoCount); + + IntStream.range(0, lottoCount).forEach(i -> { + lottoList.add(new Lotto(randomize())); + System.out.println(lottoList.get(i)); + }); + } + + private void printResult() { + System.out.println("당첨 통계"); + System.out.println("---------"); + + HashMap rankMap = getRankMap(); + printRankMap(rankMap); + + System.out.printf("총 수익률은 %.3f입니다.", + (double) getTotalPrice(rankMap) / (lottoCount * MINIMUM_LOTTO_PRICE)); + } + + private HashMap getRankMap() { + HashMap rankMap = new HashMap<>(); + lottoList.forEach(lotto -> { + Optional lottoRank = winningLotto.match(lotto); + lottoRank.ifPresent(rank -> rankMap.merge(rank.getPrice(), 1, Integer::sum)); + }); + return rankMap; + } + + private void printRankMap(HashMap rankMap) { + Arrays.stream(Rank.values()) + .forEach(rank -> { + Optional priceCount = Optional.ofNullable(rankMap.get(rank.getPrice())); + System.out.printf("%d개 일치 (%d원)-%d개\n", rank.getMatch(), rank.getPrice(), + priceCount.orElse(0)); + }); + } + + private int getTotalPrice(HashMap rankMap) { + return Arrays.stream(Rank.values()) + .map(rank -> Optional.ofNullable(rankMap.get(rank.getPrice())).orElse(0) + * rank.getPrice()) + .reduce(0, Integer::sum); + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Lotto.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Lotto.java new file mode 100644 index 0000000..2a2a25f --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Lotto.java @@ -0,0 +1,24 @@ +package com.hyuunnn.lotto; + +import java.util.List; + +/** + * 로또 한장을 의미하는 객체 + */ +public class Lotto { + + private final List numbers; + + public Lotto(List numbers) { + this.numbers = numbers; + } + + public List getLottoList() { + return numbers; + } + + @Override + public String toString() { + return numbers.toString(); + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Main.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Main.java new file mode 100644 index 0000000..8641ff0 --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Main.java @@ -0,0 +1,9 @@ +package com.hyuunnn.lotto; + +public class Main { + + public static void main(String[] args) { + GamePlayer gamePlayer = new GamePlayer(); + gamePlayer.run(); + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Rank.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Rank.java new file mode 100644 index 0000000..5dd19df --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Rank.java @@ -0,0 +1,50 @@ +package com.hyuunnn.lotto; + +public enum Rank { + FIFTH(3, 5_000, Bonus.NONE), + FOURTH(4, 50_000, Bonus.NONE), + THIRD(5, 1_500_000, Bonus.MISMATCH), + SECOND(5, 30_000_000, Bonus.MATCH), + FIRST(6, 2_000_000_000, Bonus.NONE); + + private final int match; + private final int price; + private final Bonus bonus; + + Rank(int match, int price, Bonus bonus) { + this.match = match; + this.price = price; + this.bonus = bonus; + } + + public int getMatch() { + return this.match; + } + + public int getPrice() { + return this.price; + } + + public boolean isMatch(int matchCount, boolean bonusMatch) { + return match == matchCount && bonus.isMatch(bonusMatch); + } + + enum Bonus { + MATCH(true), + MISMATCH(false), + NONE(true); + + private final boolean match; + + Bonus(boolean match) { + this.match = match; + } + + public boolean isMatch(boolean bonusMatch) { + if (this == Bonus.NONE) { + return true; + } + return match == bonusMatch; + } + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Util.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Util.java new file mode 100644 index 0000000..7c6271b --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Util.java @@ -0,0 +1,48 @@ +package com.hyuunnn.lotto; + +import java.util.Arrays; +import java.util.LinkedHashSet; +import java.util.List; +import java.util.Random; +import java.util.Scanner; +import java.util.Set; + +public class Util { + + public static final Scanner SCANNER = new Scanner(System.in); + public static final int LOTTO_LENGTH = 6; + public static final int MAX_LOTTO_RANGE = 45; + public static final int MIN_LOTTO_RANGE = 1; + public static final int MINIMUM_LOTTO_PRICE = 1000; + public static final String SEPARATOR = ","; + + public static List randomize() { + Random r = new Random(); + Set numberList = new LinkedHashSet<>(); + + while (numberList.size() < LOTTO_LENGTH) { + numberList.add(r.nextInt(MAX_LOTTO_RANGE) + 1); + } + return List.copyOf(numberList); + } + + public static List strToIntegerList(String strNumber) { + return Arrays.stream(strToArray(strNumber)) + .mapToInt(Integer::parseInt) + .boxed() + .toList(); + } + + public static String[] strToArray(String strNumber) { + return strNumber.split(SEPARATOR); + } + + public static int strToInteger(String strNumber) { + return Integer.parseInt(strNumber); + } + + public static int getLottoCount(int price) { + return price / MINIMUM_LOTTO_PRICE; + } + +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/BonusNumberValidator.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/BonusNumberValidator.java new file mode 100644 index 0000000..f0638fa --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/BonusNumberValidator.java @@ -0,0 +1,35 @@ +package com.hyuunnn.lotto.Validator; + +import static com.hyuunnn.lotto.Util.strToInteger; + +import java.util.List; + +public class BonusNumberValidator extends Validator { + + public static void validateNumber(List lottoList, String strNumber) { + checkInteger(strNumber); + int bonusNumber = strToInteger(strNumber); + checkRange(bonusNumber); + checkOverlap(lottoList, bonusNumber); + } + + public static void checkOverlap(List lottoList, int bonusNumber) { + if (lottoList.contains(bonusNumber)) { + throw new IllegalStateException(ErrorMessage.INVALID_OVERLAP.get()); + } + } + + enum ErrorMessage { + INVALID_OVERLAP("보너스볼은 당첨 로또 번호 6개 숫자와 중복될 수 없습니다."); + + private final String message; + + ErrorMessage(String message) { + this.message = message; + } + + public String get() { + return message; + } + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/PriceNumberValidator.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/PriceNumberValidator.java new file mode 100644 index 0000000..1a8345d --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/PriceNumberValidator.java @@ -0,0 +1,41 @@ +package com.hyuunnn.lotto.Validator; + +import static com.hyuunnn.lotto.Util.MINIMUM_LOTTO_PRICE; +import static com.hyuunnn.lotto.Util.strToInteger; + +public class PriceNumberValidator extends Validator { + + public static void validateNumber(String strNumber) { + checkInteger(strNumber); + int price = strToInteger(strNumber); + checkNegativePrice(price); + checkNumberPrice(price); + } + + public static void checkNegativePrice(int price) { + if (price < 0) { + throw new IllegalStateException(ErrorMessage.INVALID_PRICE_RANGE.get()); + } + } + + public static void checkNumberPrice(int price) { + if (price < MINIMUM_LOTTO_PRICE) { + throw new IllegalStateException(ErrorMessage.INVALID_PRICE.get()); + } + } + + enum ErrorMessage { + INVALID_PRICE_RANGE("돈은 음수가 될 수 없습니다."), + INVALID_PRICE("구매할 돈이 부족합니다."); + + private final String message; + + ErrorMessage(String message) { + this.message = message; + } + + public String get() { + return message; + } + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/Validator.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/Validator.java new file mode 100644 index 0000000..d532a1b --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/Validator.java @@ -0,0 +1,44 @@ +package com.hyuunnn.lotto.Validator; + +import static com.hyuunnn.lotto.Util.MAX_LOTTO_RANGE; +import static com.hyuunnn.lotto.Util.MIN_LOTTO_RANGE; +import static com.hyuunnn.lotto.Util.strToInteger; + +public class Validator { + + public static void checkInteger(String strNumber) { + if (isNotInteger(strNumber)) { + throw new IllegalStateException(ErrorMessage.INVALID_NUMBER.get()); + } + } + + public static boolean isNotInteger(String str) { + try { + strToInteger(str); + } catch (NumberFormatException e) { + return true; + } + return false; + } + + public static void checkRange(int lottoNumber) { + if (lottoNumber < MIN_LOTTO_RANGE || lottoNumber > MAX_LOTTO_RANGE) { + throw new IllegalStateException(ErrorMessage.INVALID_RANGE.get()); + } + } + + enum ErrorMessage { + INVALID_NUMBER("32비트 정수입력 범위를 벗어났습니다."), + INVALID_RANGE("로또 숫자 범위는 1~45 입니다."); + + private final String message; + + ErrorMessage(String message) { + this.message = message; + } + + public String get() { + return message; + } + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/WinningNumberValidator.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/WinningNumberValidator.java new file mode 100644 index 0000000..ec9002f --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/Validator/WinningNumberValidator.java @@ -0,0 +1,53 @@ +package com.hyuunnn.lotto.Validator; + +import static com.hyuunnn.lotto.Util.LOTTO_LENGTH; + +import java.util.Arrays; + +public class WinningNumberValidator extends Validator { + + public static void validateNumber(String[] strList) { + checkIntegerList(strList); + checkRangeList(strList); + checkLength(strList); + checkOverlap(strList); + } + + public static void checkIntegerList(String[] strList) { + Arrays.stream(strList) + .forEach(Validator::checkInteger); + } + + public static void checkRangeList(String[] strList) { + Arrays.stream(strList) + .mapToInt(Integer::parseInt) + .forEach(Validator::checkRange); + } + + public static void checkLength(String[] strList) { + if (strList.length != LOTTO_LENGTH) { + throw new IllegalStateException(ErrorMessage.INVALID_LENGTH.get()); + } + } + + public static void checkOverlap(String[] strList) { + if (strList.length != Arrays.stream(strList).distinct().count()) { + throw new IllegalStateException(ErrorMessage.INVALID_OVERLAP.get()); + } + } + + enum ErrorMessage { + INVALID_OVERLAP("로또 숫자는 서로 중복될 수 없습니다."), + INVALID_LENGTH("로또는 6개의 숫자가 필요합니다."); + + private final String message; + + ErrorMessage(String message) { + this.message = message; + } + + public String get() { + return message; + } + } +} diff --git a/hyuunnn/src/main/java/com/hyuunnn/lotto/WinningLotto.java b/hyuunnn/src/main/java/com/hyuunnn/lotto/WinningLotto.java new file mode 100644 index 0000000..8ee9af7 --- /dev/null +++ b/hyuunnn/src/main/java/com/hyuunnn/lotto/WinningLotto.java @@ -0,0 +1,40 @@ +package com.hyuunnn.lotto; + +import java.util.Arrays; +import java.util.Optional; + +/** + * 당첨 번호를 담당하는 객체 + */ +public class WinningLotto { + + private final Lotto lotto; + private final int bonusNo; + + public WinningLotto(Lotto lotto, int bonusNo) { + this.lotto = lotto; + this.bonusNo = bonusNo; + } + + public Optional match(Lotto userLotto) { + int matchCount = getMatchCount(userLotto); + boolean bonusMatch = isBonusMatch(userLotto); + return getRank(matchCount, bonusMatch); + } + + private int getMatchCount(Lotto userLotto) { + return (int) lotto.getLottoList().stream() + .filter(e -> userLotto.getLottoList().contains(e)) + .count(); + } + + private boolean isBonusMatch(Lotto userLotto) { + return userLotto.getLottoList().contains(bonusNo); + } + + private Optional getRank(int matchCount, boolean bonusMatch) { + return Arrays.stream(Rank.values()) + .filter(rank -> rank.isMatch(matchCount, bonusMatch)) + .findFirst(); + } +} diff --git a/hyuunnn/src/main/resources/application.properties b/hyuunnn/src/main/resources/application.properties new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/hyuunnn/src/main/resources/application.properties @@ -0,0 +1 @@ + diff --git a/hyuunnn/src/test/java/com/hyuunnn/lotto/LottoTest.java b/hyuunnn/src/test/java/com/hyuunnn/lotto/LottoTest.java new file mode 100644 index 0000000..5b3ebc4 --- /dev/null +++ b/hyuunnn/src/test/java/com/hyuunnn/lotto/LottoTest.java @@ -0,0 +1,74 @@ +package com.hyuunnn.lotto; + +import static org.assertj.core.api.Assertions.assertThat; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Optional; +import java.util.Random; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.api.Test; + +public class LottoTest { + + @Test + @DisplayName("lotto 객체 사이즈 테스트") + public void lottoSizeTest() { + Random random = new Random(); + Lotto lotto; + + for (int i = 0; i < 100; i++) { + List testList = new ArrayList<>(); + for (int j = 0; j < i; j++) { + testList.add(random.nextInt()); + } + + lotto = new Lotto(testList); + assertThat(lotto.getLottoList()).hasSize(i); + } + } + + @Test + @DisplayName("lotto 객체 생성 데이터 테스트") + public void lottoInitTest() { + Random random = new Random(); + Lotto lotto; + + for (int i = 0; i < 100; i++) { + List testList = new ArrayList<>(); + for (int j = 0; j < i; j++) { + testList.add(random.nextInt()); + } + + lotto = new Lotto(testList); + assertThat(lotto.getLottoList()).isEqualTo(testList); + } + } + + @Test + @DisplayName("WinningLotto match 메서드 테스트") + public void WinningLottoMatchTest() { + List lottoList = Arrays.asList(1, 2, 3, 4, 5, 6); + assertRank(Arrays.asList(1, 2, 3, 4, 5, 6), lottoList, 7, Optional.of(Rank.FIRST)); + assertRank(Arrays.asList(1, 2, 3, 4, 5, 7), lottoList, 7, Optional.of(Rank.SECOND)); + assertRank(Arrays.asList(1, 2, 3, 4, 5, 8), lottoList, 7, Optional.of(Rank.THIRD)); + assertRank(Arrays.asList(1, 2, 3, 4, 8, 9), lottoList, 7, Optional.of(Rank.FOURTH)); + assertRank(Arrays.asList(1, 2, 3, 4, 8, 7), lottoList, 7, Optional.of(Rank.FOURTH)); + assertRank(Arrays.asList(1, 2, 3, 8, 9, 10), lottoList, 7, Optional.of(Rank.FIFTH)); + assertRank(Arrays.asList(1, 2, 3, 8, 9, 7), lottoList, 7, Optional.of(Rank.FIFTH)); + assertRank(Arrays.asList(1, 2, 8, 9, 10, 11), lottoList, 7,Optional.empty()); + assertRank(Arrays.asList(1, 8, 9, 10, 11, 12), lottoList, 7, Optional.empty()); + assertRank(Arrays.asList(8, 9, 10, 11, 12, 13), lottoList, 7, Optional.empty()); + } + + private void assertRank(List testList, List lottoList, int bonusNumber, + Optional rankResult) { + WinningLotto winningLotto; + + winningLotto = new WinningLotto(new Lotto(lottoList), bonusNumber); + Optional rankTest = winningLotto.match(new Lotto(testList)); + assertThat(rankTest).isEqualTo(rankResult); + } +} + diff --git a/hyuunnn/src/test/java/com/hyuunnn/lotto/UtilTest.java b/hyuunnn/src/test/java/com/hyuunnn/lotto/UtilTest.java new file mode 100644 index 0000000..89533f6 --- /dev/null +++ b/hyuunnn/src/test/java/com/hyuunnn/lotto/UtilTest.java @@ -0,0 +1,19 @@ +package com.hyuunnn.lotto; + +import static com.hyuunnn.lotto.Util.LOTTO_LENGTH; +import static com.hyuunnn.lotto.Util.randomize; +import static org.assertj.core.api.Assertions.assertThat; + +import java.util.List; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.api.Test; + +public class UtilTest { + + @Test + @DisplayName("랜덤 생성 사이즈 테스트") + public void RandomizeTest() { + List testRandomize = randomize(); + assertThat(testRandomize.size()).isEqualTo(LOTTO_LENGTH); + } +} diff --git a/hyuunnn/src/test/java/com/hyuunnn/lotto/ValidatorTest.java b/hyuunnn/src/test/java/com/hyuunnn/lotto/ValidatorTest.java new file mode 100644 index 0000000..d9e9d00 --- /dev/null +++ b/hyuunnn/src/test/java/com/hyuunnn/lotto/ValidatorTest.java @@ -0,0 +1,81 @@ +package com.hyuunnn.lotto; + +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertThrows; + +import java.util.Arrays; +import java.util.List; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.api.Test; +import com.hyuunnn.lotto.Validator.BonusNumberValidator; +import com.hyuunnn.lotto.Validator.PriceNumberValidator; +import com.hyuunnn.lotto.Validator.WinningNumberValidator; + +public class ValidatorTest { + + private Throwable exception; + + @Test + @DisplayName("구매 금액 입력 에러 테스트") + public void PriceNumberErrorTest() { + TryPriceNumberException("-1", "돈은 음수가 될 수 없습니다."); + TryPriceNumberException("0", "구매할 돈이 부족합니다."); + TryPriceNumberException("1", "구매할 돈이 부족합니다."); + TryPriceNumberException("100", "구매할 돈이 부족합니다."); + TryPriceNumberException("999", "구매할 돈이 부족합니다."); + TryPriceNumberException("100000000000000", "32비트 정수입력 범위를 벗어났습니다."); + TryPriceNumberException("asdf", "32비트 정수입력 범위를 벗어났습니다."); + } + + private void TryPriceNumberException(String strNumber, String msg) { + exception = assertThrows(RuntimeException.class, () -> { + PriceNumberValidator.validateNumber(strNumber); + }); + assertEquals(msg, exception.getMessage()); + } + + @Test + @DisplayName("당첨번호 입력 에러 테스트") + public void WinningNumberErrorTest() { + TryWinningNumberException(new String[]{"-1", "46", "-3", "47", "-5", "0"}, + "로또 숫자 범위는 1~45 입니다."); + TryWinningNumberException(new String[]{"46", "-1"}, "로또 숫자 범위는 1~45 입니다."); + TryWinningNumberException(new String[]{"34", "20"}, "로또는 6개의 숫자가 필요합니다."); + TryWinningNumberException(new String[]{"34", "20", "18", "43", "45"}, "로또는 6개의 숫자가 필요합니다."); + TryWinningNumberException(new String[]{"34", "20", "18", "43", "45", "9", "10"}, + "로또는 6개의 숫자가 필요합니다."); + TryWinningNumberException(new String[]{"1", "1", "1", "1", "1", "1"}, "로또 숫자는 서로 중복될 수 없습니다."); + TryWinningNumberException(new String[]{"34", "20", "18", "43", "45", "34"}, + "로또 숫자는 서로 중복될 수 없습니다."); + TryWinningNumberException(new String[]{"aa", "bb", "44"}, "32비트 정수입력 범위를 벗어났습니다."); + } + + private void TryWinningNumberException(String[] strList, String msg) { + exception = assertThrows(RuntimeException.class, () -> { + WinningNumberValidator.validateNumber(strList); + }); + assertEquals(msg, exception.getMessage()); + } + + @Test + @DisplayName("보너스 볼 입력 에러 테스트") + public void BonusNumberErrorTest() { + + List lottoList = Arrays.asList(34, 20, 18, 43, 45, 9); + + TryBonusNumberException(lottoList, "-1", "로또 숫자 범위는 1~45 입니다."); + TryBonusNumberException(lottoList, "0", "로또 숫자 범위는 1~45 입니다."); + TryBonusNumberException(lottoList, "9", "보너스볼은 당첨 로또 번호 6개 숫자와 중복될 수 없습니다."); + TryBonusNumberException(lottoList, "20", "보너스볼은 당첨 로또 번호 6개 숫자와 중복될 수 없습니다."); + TryBonusNumberException(lottoList, "100", "로또 숫자 범위는 1~45 입니다."); + TryBonusNumberException(lottoList, "100000000000000", "32비트 정수입력 범위를 벗어났습니다."); + TryBonusNumberException(lottoList, "asdf", "32비트 정수입력 범위를 벗어났습니다."); + } + + private void TryBonusNumberException(List lottoList, String strNumber, String msg) { + exception = assertThrows(RuntimeException.class, () -> { + BonusNumberValidator.validateNumber(lottoList, strNumber); + }); + assertEquals(msg, exception.getMessage()); + } +}