打印菱形

package com.humi.other;

public class PrintLX {

	public static void main(String[] args){
		for (int i = 0; i < 5; i++) {//上三角
			for (int j = 5-i; j >0; j--) {
				System.out.print(" ");
			}
			for (int j = 0; j <2*i-1; j++) {
				System.out.print("*");
			}
			
			System.out.println();
		}
		for (int i = 5; i >0; i--) {//下三角
			for (int j = 0; j <5-i; j++) {
				System.out.print(" ");
			}
			for (int j = i; j >-(2*i-1)/2; j--) {
				System.out.print("*");
			}
			System.out.println();
		}
	}
}

效果图