猜数字小游戏——Java实现

谁借莪１个温暖的怀抱￠ 2024-03-23 15:05 80阅读 0赞

//猜数字小游戏
    import java.util.Random;
    import java.util.Scanner;
    public class helloworld{
        
        public static void main(String[] args) {
        
            System.out.println("***************************");
            System.out.println("********** 1.play *********");
            System.out.println("********** 0.exit *********");
            System.out.println("***************************");
            Scanner scanner = new Scanner(System.in);
            int input = 1;
            do{
        
                System.out.println("请输入你的选择！");
                input  = scanner.nextInt();
    
                switch (input){
        
                    case 1:
                        System.out.println("开始游戏！");
                        Random random = new Random();
                        int rand_num  = random.nextInt(100);//伪随机数在[0,100)
    
                        while(true){
        
                            System.out.println("请输入你猜的数：");
                            int  x = scanner.nextInt();;
                            if(x>rand_num){
        
                                System.out.println("猜大了");
                            }
                            else if(x<rand_num){
        
                                System.out.println("猜小了");
                            }
                            else{
        
                                System.out.println("猜对了！");
                                break;
                            }
    
                        }
                        break;
                    case 0:
                        System.out.println("游戏结束！");
                        break;
                    default:
                        System.out.println("输入格式错误，请重新输入！");
                        break;
                }
            }while(input != 0);
        }
    }