Write a Java program to print right pascals number triangle using for loop.
import java.util.Scanner; public class RightPascalNumber1 { private static Scanner sc; public static void main(String[] args) { sc = new Scanner(System.in); int i, j; System.out.print("Enter Right Pascals Number Triangle Pattern Rows = "); int rows = sc.nextInt(); System.out.println("Printing Right Pascals Triangle Number Pattern"); for (i = 1 ; i <= rows; i++ ) { for (j = 1 ; j <= i; j++ ) { System.out.print(j + " "); } System.out.println(); } for (i = rows - 1; i >= 1; i-- ) { for (j = 1 ; j <= i; j++ ) { System.out.print(j + " "); } System.out.println(); } } }

This Java example displays the right pascals triangle of numbers using a while loop.
import java.util.Scanner; public class RightPascalNumber2 { private static Scanner sc; public static void main(String[] args) { sc = new Scanner(System.in); System.out.print("Enter Right Pascals Number Triangle Pattern Rows = "); int rows = sc.nextInt(); System.out.println("Printing Right Pascals Triangle Number Pattern"); int i = 1, j; while (i <= rows ) { j = 1 ; while (j <= i ) { System.out.print(j + " "); j++; } System.out.println(); i++; } i = rows - 1; while (i >= 1 ) { j = 1 ; while( j <= i ) { System.out.print(j + " "); j++; } System.out.println(); i--; } } }
Enter Right Pascals Number Triangle Pattern Rows = 7
Printing Right Pascals Triangle Number Pattern
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
Java program to print right pascals number triangle using do while loop.
import java.util.Scanner; public class RightPascalNumber3 { private static Scanner sc; public static void main(String[] args) { sc = new Scanner(System.in); System.out.print("Enter Right Pascals Number Triangle Pattern Rows = "); int rows = sc.nextInt(); System.out.println("Printing Right Pascals Triangle Number Pattern"); int i = 1, j; do { j = 1 ; do { System.out.print(j + " "); } while (++j <= i ); System.out.println(); } while (++i <= rows ); i = rows - 1; do { j = 1 ; do { System.out.print(j + " "); } while( ++j <= i ); System.out.println(); } while (--i >= 1 ); } }
Enter Right Pascals Number Triangle Pattern Rows = 9
Printing Right Pascals Triangle Number Pattern
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1