java输出菱形

 package test;

 public class Test {
     public static void main(String[] args) {
             for(int i=1;i<=4;i++){
             for(int k=1;k<=4-i;k++){
                 System.out.print(" "+" ");
             }
             for(int j=1;j<=2*i-1;j++){

                 System.out.print("*"+" ");
             }
             System.out.println();
         }
         for(int i=1;i<=3;i++){
             for(int k=1;k<=i;k++){
                 System.out.print(" "+" ");
             }
             for(int j=1;j<=7-2*i;j++){
                 System.out.print("*"+" ");
             }
             System.out.println();
         }
     }
 }