Java: Print a pattern like a pyramid

Last update on March 11 2025 11:03:40 (UTC/GMT +8 hours)

Pyramid with Repeating Numbers

Write a Java program to make such a pattern like a pyramid with a number that repeats in the same row.

       1
      2 2
     3 3 3
    4 4 4 4  

Test Data
Input number of rows : 4

Pictorial Presentation:

Sample Solution:

Java Code:

import java.util.Scanner;
public class Exercise19 {

  public static void main(String[] args)
{
   int i,j,n,s,x;
   System.out.print ("Input number of rows : ");
   Scanner in = new Scanner(System.in);
		    n = in.nextInt();

   s=n+4-1;
    for(i=1;i<=n;i++)
   {
   for(x=s;x!=0;x--)
    {
   System.out.print(" ");
    }
    for(j=1;j<=i;j++)
    {
     System.out.print(i+" ");
     }
	System.out.println();
    s--;
   }
}
}

Sample Output:

Input number of rows : 4                                                                                      
       1                                                                                                      
      2 2                                                                                                     
     3 3 3                                                                                                    
    4 4 4 4 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to generate a pyramid pattern where each row’s number repeats and the pattern is centered.
• Write a Java program to create an inverted pyramid of repeating numbers and then mirror it to form a full pyramid.
• Write a Java program to produce a pyramid pattern where the repeating number is the sum of the previous row’s value.
• Write a Java program to generate a pyramid pattern with repeating numbers using a recursive method.

Java Code Editor:

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