Java Program to print Pascal Triangle,

import java.util.Scanner;
public class JavaExample {
    static int fact(int num) {
 int factorial;

 for(factorial = 1; num > 1; num--){
  factorial *= num;
 }
 return factorial;
    }
    static int ncr(int n,int r) {
 return fact(n) / ( fact(n-r) * fact(r) );
    }
    public static void main(String args[]){
 int rows, i, j;

 //getting number of rows from user
 System.out.println("Enter number of rows:");
 Scanner scanner = new Scanner(System.in);
 rows = scanner.nextInt();
 scanner.close();

 System.out.println("Pascal Triangle:");
 for(i = 0; i < rows; i++) {
  for(j = 0; j < rows-i; j++){
   System.out.print(" ");
  }
  for(j = 0; j <= i; j++){
   System.out.print(" "+ncr(i, j));
  }
  System.out.println();
  }
    }
}