完成猜数字游戏需要实现以下几点:
代码实现:
import java.util.Random; import java.util.Scanner; public class guessNum { public static int getRanNum(){ //获得一个随机数 Random random = new Random(); return random.nextInt(100); } public static boolean guess(Scanner scanner,int toGuess){ System.out.println("请输入要猜的数(1-100):"); int num = scanner.nextInt(); if ( num < toGuess){ System.out.println("小了..."); return false; } else if ( num > toGuess){ System.out.println("大了..."); return false; } else { System.out.println("恭喜你,猜对了!!"); return true; } } public static void startGame(Scanner scanner){ int toGuess = getRanNum(); while( true ){ if (guess(scanner,toGuess)){ break; } } } public static void main(String[] args) { Scanner scanner = new Scanner(System.in); startGame(scanner); } }
运行结果: