java菱形

package lili;public class zuoye1 {    public static void main(String[] args) {    // TODO Auto-generated method stub    int i,j;     for(i=1;i<=4;i++)      {       for(j=1;j<=4-i;j++)        System.out.print("  ");      for(j=1;j<=2*i-1;j++)         System.out.print("*");       System.out.println("    ");           }    for(i=1;i<=3;i++)       {        for(j=1;j<=i;j++)       System.out.print("  ");       for(j=1;j<=7-2*i;j++)      System.out.print("*");      System.out.println("");        }    }        }