嵌套

package com.karl;

public class loopnestedDemo {
    public static void main(String[] args) {
        //外部循环每循环一次，内部循环会全部执行完一轮
        //嵌套循环
        for (int i = 1; i <= 3; i++) {
            for (int j=1;j<=5;j++){
                System.out.println("ko"+i);
            }
            System.out.println("-------------------------------");
        }
        for (int i = 0; i <=3; i++) {
            for (int j = 1; j <= 4; j++) {
                System.out.print("*");//println换行
                                        //print不换行
            }
            System.out.println();
        }
    }
}