用Random类做猜数字游戏

用Random类随机生成一个0-100之内的数字，让人去猜。

import java.util.Scanner;
import java.util.Random;
public class game {
	public static void main(String[] args) {
		Random a = new Random();
		int data = a.nextInt(100)+1;
		Scanner input = new Scanner (System.in);
		while(true) {
			System.out.println("你猜多大(0~100):");
			int nc =input.nextInt();
			if(nc<0 || nc>100) {
				System.out.println("输入的数字不在0-100之内");
			}else if(nc<data){
				System.out.println("猜小了");
			}else if(nc>data) {
				System.out.println("猜大了");
			}else {
				System.out.println("恭喜猜中！");
				break;
			}
		}
	input.close();}
}