用循环输出等腰三角形

/*
 * 打印等腰三角形,打印的行数由用户输入,打印完后,由用户选择继续打印还是退出程序。
 * 课本54页的第二题
 * EquicruralTriangle.java
 * @author LGM
 * @version 2015.04.01
 */

import java.util.Scanner;

public class EquicruralTriangle {
	public static void main(String[] args) { 	
		int HowMany = 0;	//定义需打印行数
		String Chooes = "y";	//定义打印完后,是否继续
		Scanner input = new Scanner(System.in);		//定义用户可输入
		while (Chooes.equals("y")) { 	//如果是“y”,继续打印
			System.out.println("请问你需要打印多少行等腰三角形:");
			HowMany = input.nextInt();		//接收打印的行数
			
			for (int i = 1; i <= HowMany; i++) {						
				for (int k = 1; k <= HowMany - i; k++) {			
					System.out.print(" ");
				}
				for (int j = 1; j <= 2 * i - 1; j++) {										
					System.out.print("*");	
				}
				System.out.println();
			}
			System.out.println("是否继续打印,继续请输入y;退出请随意输入!");
			Chooes = input.next();
		} 
		System.out.println("再见!欢迎再次使用!");				
	}
}

原文地址:https://www.cnblogs.com/LGMing/p/4412591.html