How to print this series?
Below is the logic for printing this series,
1 = (0 * 0) + 1
2 = (1 * 1) + 1
5 = (2 * 2) + 1
10 = (3 * 3) + 1
17 = (4 * 4) + 1
We are going to see two solutions here to print this series,
Solution #1:
package com.javacodepoint.series;
import java.util.Scanner;
/**
* Series pattern: 1, 2, 5, 10, 17
*
* @author javacodepoint.com
*
*/
public class SeriesPattern1 {
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();
System.out.print("Series: ");
for (int i = 0; i < n; i++) {
// Calculate the element of the series
int element = (i*i) + 1;
// Print the element with comma(,) separator
System.out.print(element + ", ");
}
}
}
OUTPUT:
Enter no. of elements you want in the series:
6
Series: 1, 2, 5, 10, 17, 26,
Solution #2:
By using Math.pow() method,
package com.javacodepoint.series;
import java.util.Scanner;
/**
* Series pattern: 1, 2, 5, 10, 17
*
* @author javacodepoint.com
*
*/
public class SeriesPattern2 {
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();
System.out.print("Series: ");
for (int i = 0; i < n; i++) {
// Calculate the element of the series
int element = (int) (Math.pow(i, 2) + 1);
// Print the element with comma(,) separator
System.out.print(element + ", ");
}
}
}
OUTPUT:
Enter no. of elements you want in the series:
5
Series: 1, 2, 5, 10, 17,