Right Pascal's pattern print on Java

package HelloWorld;

import java.util.Scanner;

public class LearningJava {

public static void main (String[] args) {

Scanner scan = new Scanner(System.in);

int n = scan.nextInt();

for(int i =1;i<=n;i++) {

for(int j =1;j<=i;j++) { System.out.print("* ");

}

System.out.println();

}

for(int i =n; i>=1;i--) {

for(int j=1; j<=i; j++) {

System.out.print("* ");

}

System.out.println();

}

}

}

 4

*

* *

* * *

* * * *

* * * *

* * *

* *

*