Java Program to print Even Odd number Pyramid

In this tutorial, we will write a program to print even and odd number pyramid in java. Before that, you may go through the following topic in java.

• for loop in java

Example:

Input: 
       No. of rows:  7
Output:
* 
1* 
*2* 
1*3* 
*2*4* 
1*3*5* 
*2*4*6*

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Java Program to print Even Odd number Pyramid

The program takes a user input for the number of rows with the help of a Scanner class in Java. Then iterating through for loop and inner for loop, it prints the even and odd number pattern in Java.

import java.util.Scanner;

public class Main
{
  public static void main(String[] args)
  {
    int i, j, k, num;
    Scanner sc = new Scanner(System.in);

    System.out.print("Enter the no. of rows: ");
    num = sc.nextInt();

    for (i = 1; i <= num; i++)
    {
      for (j = 1, k = i; j <= i; j++, k--)
      {
        if (k % 2 == 0)
          System.out.print(j);
        else
          System.out.print("*");

      }

      System.out.print("\n");
    }
  }
}

Output:

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