1、本篇博客主要介绍几道for循环嵌套练习题目
2、源码如下
class ForForTest { public static void main(String[] args) { /* ***** **** *** ** * */ /* int z = 5; for (int x = 1; x<=5 ;x++ )//1-5 1-4 1-3//1-5 2-5 3-5 { for (int y=1; y<=z ; y++ ) { System.out.print("*"); } System.out.println(); z--; } */ /* int z = 1; for (int x = 1; x<=5 ;x++ )//1-5 1-4 1-3//1-5 2-5 3-5 { for (int y=z; y<=5 ; y++ ) { System.out.print("$"); } System.out.println(); z++; } */ for(int x=1; x<=5; x++) { for(int y=x; y<=5; y++) { System.out.print("*"); } System.out.println(); } /* * ** *** **** ***** */ System.out.println("----------"); for (int x=1; x<=5 ;x++ ) { for (int y=1;y<=x ;y++ ) { System.out.print("*"); } System.out.println(); } System.out.println("----------"); /* 54321 5432 543 54 5 */ for (int x=1; x<=5; x++ ) { for (int y=5; y>=x ;y-- ) { System.out.print(y); } System.out.println(); } System.out.println("----------"); /* 1 22 333 4444 55555 */ for (int x=1; x<=5 ; x++) { for (int y=1;y<=x ;y++ ) { System.out.print(x); } System.out.println(); } } } 我的微信号: xiang20200106 ,欢迎大家找我聊天 — 【 THE END 】— 本公众号已经整理一套包含前端和后端的全套电子书教程，限时免费赠送，请在公众号里回复「电子书」获取！