Java Program To Print Floyd’s Triangle

Chapter: Miscellaneous Last Updated: 10-08-2016 16:46:44 UTC

Program:

            /* ............... START ............... */
                
import java.util.Scanner;

public class JavaFloydTriangle {
	public static void main(String args[]) {

		int rows, number = 1, counter, j;

		Scanner input = new Scanner(System.in);
		System.out.println("Enter the number of rows for floyd's triangle:");

		rows = input.nextInt();
		System.out.println("Floyd's triangle");
		System.out.println("****************");
		for (counter = 1; counter <= rows; counter++) {
			for (j = 1; j <= counter; j++) {
				System.out.print(number + " ");
				number++;
			}
			System.out.println();
		}
	}
}

                /* ............... END ............... */
        

Output

Enter the number of rows for floyd's triangle:
5
Floyd's triangle
****************
1 
2 3 
4 5 6 
7 8 9 10 
11 12 13 14 15 

Notes:

  • Floyd's triangle is a right-angled triangular array of natural numbers, used in computer science education.
  • It is named after Robert Floyd. It is defined by filling the rows of the triangle with consecutive numbers, starting with a 1 in the top left corner.

Tags

Print Floyd’s Triangle, Java

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