package cn.jbit.nestedloops;
import java.util.Scanner;
/*** 输入行数打印菱形*/
public class Diamond {public static void main(String[] args) {int rows = 0;	//菱形的行数Scanner input = new Scanner(System.in);System.out.print("请输入菱形行数：");rows = input.nextInt();while(rows%2 == 0){System.out.print("请输入奇数：");rows = input.nextInt();}int n = (rows+1)/2;//打印菱形的上半部分for(int i = 1; i <= n; i++){//外层循环变量i控制行数for(int j = 1; j <= n-i; j++){//内层循环变量j控制该行空格数System.out.print(" ");}for(int k = 1; k <= 2*i-1; k++){//内层循环变量k控制该行*号数System.out.print("*");}System.out.print("\n");}//打印菱形的下半部分for(int i = n-1; i >= 1; i--){for(int j = 1; j <= n-i; j++){System.out.print(" ");}for(int k = 1; k <= 2*i-1; k++){System.out.print("*");}System.out.print("\n");}}
}