corejava-programming: Help Pascal for constructing his Triangle Pattern

import java.util.Scanner;

public class NumberTriangle{
public static void main(String args[]){
Scanner sc=new Scanner(System.in);
int n,temp=1;
n=sc.nextInt();
for(int i=0;i<n;i++){
for(int k=n-1;k>i;k--){
System.out.print(" ");
}
temp=1;
for(int j=0;j<=i;j++){
if(j==i){
System.out.print(temp);
}else{
System.out.print(temp+" ");
temp=temp*(i-j)/(j+1);
}
}
System.out.println();
}
}
}