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Java Program for displaying Pascal Star

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Pascal.java

import java.util.Scanner; 
import java.util.Scanner;
class Pascal
{
public static void main(String[] args) 
{
int pascal,a,b,c,x;
Scanner s=new Scanner(System.in);
System.out.println("How Many Row Do you want to input: ");
c=s.nextInt();
pascal=1;
b=0;

System.out.print("Pascal's Triangle: ");

while(b<c)
{
for(a=40-3*b;a>0;--a)
System.out.print(" ");
for(x=0;x<=b;++x)
{
if((x==0)||(b==0))
pascal=1;
else
pascal=(pascal*(b-x+1))/x;
System.out.print("      ");
System.out.print(pascal);
}

System.out.println("");
++b;
}
}
}
pascal star