声明:图形的打印考验的是逻辑思维能力,与计算机语言熟练程度无关。逻辑思维能力弱的同鞋,做不了研发可以做开发。
一、效果图
代码:
package com.test; /** * 空心菱形 * * @author PETER * */ public class TestDemo4 { public static void main(String[] args) { // 定义变量 int size = 5; for (int i = 1; i <= size; i++) { for (int j = 1; j <= size - i; j++) { System.out.print(" "); } for (int k = 1; k <= 2 * i - 1; k++) { if (k == 1 || k == 2 * i - 1) { System.out.print("*"); } else { System.out.print(" "); } } System.out.println(); } for (int i = 1; i < size; i++) { for (int j = 1; j <= i; j++) System.out.print(" "); int count = 2 * (size - i) - 1; for (int k = 0; k < count; k++) { if (k == 0 || k == count - 1) System.out.print("*"); else System.out.print(" "); } System.out.println(""); } } }