membuat bintang dengan program JAVA

import java.io.IOException;

/*
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/**
*
* @author cinul
*/
public class bintang {

public bintang(){

}

public static void main(String[] args) throws IOException{
int m,x,y,n;
for (int i=1;i<=7;i++) { if (i<=4) { for (int j=1;j<=7;j++){ if (j<=4) { m=i+j; if (5<=m) System.out.print ("*"); else System.out.print (" "); } else { x=j-3; if(x<=i)System.out.print ("*"); else System.out.print (" "); } } } else for (int j=1;j<=7;j++){ if (j<=4) { y=i-3; if (y<=j) System.out.print ("*"); else System.out.print (" "); } else { x=j-3; y=i-3; n=x+y; if(n<=5) System.out.print ("*"); else System.out.print (" "); } } System.out.println (); } } }