[Java知识库]Java practice 实现菱形打印

其实算法和C语言一样——

package test;
import java.util.Scanner;
public class Fruit {
	  public static void main(String[] args) {
		Scanner s=new Scanner(System.in);
		int n,i;
		n=s.nextInt();
		
		for ( i = 1; i <= n; i++) {
			
			for (int k = 0; k <n-i ; k++) {
				System.out.print(" ");
			}
			for (int j = 1; j <= 2*i-1; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		for ( i = 1; i <= n-1; i++) 
		{
			for (int j = 0; j <i; j++) {
				System.out.print(" ");
			}
			if(i==n-1)
			{
				System.out.print("*");
			}
			else
			{
			for (int k = 0; k <2*(n-i)-1; k++) {
				System.out.print("*");
			}
			}
			System.out.println();
			
		}
		
	}
		

}