[数据结构与算法]Java 猜数字游戏

import java.util.Scanner;

public class caishuziyx {
	public static void main(String[] args) {
		System.out.println("---------猜数字游戏----------");
		caishuziyx n=new caishuziyx();
		n.show();
	}
	int jiag;
	int n;
	int u;
	Scanner input = new Scanner(System.in);

	public void show() {
		int shuij1 = (int) (Math.random() * (100)) ; 
		for (int i = 0; i < 4; i++) {
			System.out.print("请输入要猜的数字:");
			jiag = input.nextInt();
			if (jiag != shuij1) {
				n += 1;
				u += 1;
			} else {
				System.out.println("猜对了");
				break;
			}
			if (jiag > shuij1 && u < 4) {
				System.out.println("再小点\n\n再猜一次吧");
			} else if (jiag < shuij1 && u < 4) {
				System.out.println("再大点\n\n再猜一次吧");
			}

			if (n == 4) {
				System.out.println("\n4次内没有猜对，下次努力吧！");
			}
		}
	}
}

执行结果