Pattern 7 - Floyd’s triangle - Pyramid generation program in java


Write a program to generate - Floyd’s triangle in java.





Must read:     Reverse String.
                              Factorial using recursion.


Example/ Full Program/SourceCode to generate - Floyd’s triangle in java >
package pyramid;
import java.util.Scanner;
/** Copyright (c), AnkitMittal  JavaMadeSoEasy.com
Program to generate - Floyd’s triangle in java
*/
public class Pyramid7Floyds {
   public static void main(String[] args) {
    
          Scanner scanner = new Scanner(System.in);
          System.out.print("Enter rows in Floyd's triangle : ");
          int rows = scanner.nextInt();
          System.out.println("");
          int nextNumber = 1;
          for (int i = 1; i <= rows; i++) {
                 for (int j = 1; j <= i; j++) {
                       System.out.print(nextNumber<10 ? ("  " + nextNumber++) : (" " + nextNumber++) ); //2spaces in single digit & 1 space in double digit.
                       //System.out.format("%3d",nextNumber++ ); //You may use this line for formatting as a replacement of above line. (comment above line before using this)
                 }
                 System.out.println();
          }
         
   }
}
/*OUTPUT
Enter rows in Floyd's triangle : 5
 1
 2  3
 4  5  6
 7  8  9 10
11 12 13 14 15
*/

So, we wrote a program to generate - Floyd’s triangle in java.

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