In this series, we can see the number is getting tripled from its previous number in each step. So the logic for this series pattern will be as follow:
element = element * 3 (in a loop) and the element should be initialized with 1 before starting the loop.
Solution:
package com.javacodepoint.series;
import java.util.Scanner;
/**
* Series pattern: 3, 9, 27, 81, 243
*
* @author javacodepoint.com
*
*/
public class SeriesPattern {
public static void main(String[] args) {
// Create scanner object to read user inputs
Scanner sc = new Scanner(System.in);
System.out.println("Enter no. of elements you want in the series: ");
int n = sc.nextInt();
// Initialize element
int element = 1;
System.out.print("Series: ");
for (int i = 0; i < n; i++) {
// Calculate the element of the series
element = element * 3;
// Print the element with comma(,) separator
System.out.print(element + ", ");
}
}
}
OUTPUT:
Enter no. of elements you want in the series:
6
Series: 3, 9, 27, 81, 243, 729,