Pascal Triangle
It is a triangular array of the binomial coefficients in a triangle. Named Pascal comes from French mathematician, Blaise Pascal. In the program user input number. It generate rows for input number. In first row there is only the number 1. From all next rows, add the number directly above and to the left with the number directly above and to the right to find the new value.
Program Code
//Java Program to print Pascal Triangle
import java.util.*;
class Pascal
{
public static void main(String[] args)
{
System.out.print("Enter no of rows for pascal triangle: ");
Scanner console=new Scanner(System.in);
int num=console.nextInt();
for (int i = 0; i < num; i++)
{
int c = 1;
for(int j = 0;j < num-i; j++)
{
System.out.print(" "); //blank space
}
for(int k = 0; k <= i; k++)
{
System.out.print(" ");
System.out.print(c); //print c value
System.out.print(" ");
c = c * (i - k) / (k + 1);
}
System.out.println();
System.out.println();
}
System.out.println();
}
}
Input/Output
Save Program at your system by name "Pascal.java".
Input
Enter value for number of rows you want in pascal triangle
Output
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