Java do..while语句
do while 是先运行do的语句,然后在判断while的语句
do…while我自己的感悟是: 当要先输入一个东西,再判断的时候使用
例子:
int number=0;
do {
System.out.println("number的数字是:"+number);
number++;
}while(number<5);
输出是
下面是一个do…while的小游戏,里面包括了random的用法,不清楚random怎么写的小伙伴可以去我另外一个解释random的博客看:
https://blog.csdn.net/gydennis/article/details/122325849
这是一个猜数游戏,在0到100中猜一个随机数
import java.util.Random;
import java.util.Scanner;
public class Guessing {
public static void main(String[] args) {
//猜数
Random random=new Random();
int number = random.nextInt(100);
Scanner scan = new Scanner(System.in);
int max=100,min=0;
int guess_number;
System.out.println("请输入一个数");
do{
guess_number= scan.nextInt();
if(guess_number>number && guess_number>=min && guess_number <=max){
System.out.println("请输入一个数在"+min+"到"+guess_number+"之间");
max=guess_number;90
}else if(guess_number<number && guess_number>=min && guess_number <=max){
System.out.println("请输入一个数在"+guess_number+"到"+max+"之间");
min=guess_number;
}else if(guess_number<min || guess_number >max){
System.out.print("非法输入,");
System.out.println("请输入一个数在"+min+"到"+max+"之间");
}
}while(guess_number!=number);
System.out.println("恭喜你猜对了,正确的数是:"+number);
}
}