Java Program to Print the Series 0 4 18 48 100 180 …N

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In the previous article we have discussed about Java Program to Print the Series 2 1 1/2 1/4 1/8 … N

In this article we are going to see how to print the series 0 4 18 48 100 180 …N by using Java programming language.

Java Program to Print the Series 0 4 18 48 100 180 …N

On observing the pattern carefully, we can see

The series follows a logic using i.e (i^3)-(i^2) where i starts from 1 and incremented by 1 in each term.

(1^3)-(1^2) = 0

(2^3)-(2^2) = 4

(3^3)-(3^2) = 18

(4^3)-(4^2) = 48 and so on.

Example:

0 4 18 48 100 180 …… N

Let’s see different ways to print the series 0 4 18 48 100 180 …N

Method-1: Java Program to Print the Series 0 4 18 48 100 180 …N By Using For Loop

Approach:

  • Create Scanner class object.
  • Declare an integer variable say ‘n’ which holds the number of terms in the series.
  • Prompt the user to enter a number as value of n.
  • Let declare an double variable say ‘result’
  • Use a for loop from i=1 to i<=n where the loop is incremented by 1
  • Inside the for loop we will find the value of result=(i^3)-(i^2).
  • Print the result in the series.

Program:

import java.util.*;
public class Main
{
    public static void main(String [] args)
    {
        //creating object of Scanner class 
        Scanner s = new Scanner(System.in);
        //Taking input of number of elements in the series
        System.out.println("Enter the Nth term “N” ");
        int n = s.nextInt();
        double result;
        //for loop to print the series
        for (int i = 1; i <= n; i++) 
        {
            result = Math.pow(i,3)-Math.pow(i,2); 
            System.out.print((int)result+" ");
        } 
    }
}

Output:

Enter the Nth term “N” 
5
0 4 18 48 100

Method-2: Java Program to Print the Series 0 4 18 48 100 180 …N By Using While Loop

Approach:

  • Create Scanner class object.
  • Declare an integer variable say ‘n’ which holds the number of terms in the series.
  • Prompt the user to enter a number as value of n.
  • Let declare double variable say ‘result’
  • Declare and initialize an integer variable i=1
  • Continue a while loop till i<=n, where i is incremented by 1.
  • Inside while loop find the value of result = (i^3)-(i^2).
  • Print the result in the series.

Program:

import java.util.*;
public class Main
{
    public static void main(String [] args)
    {
        //creating object of Scanner class 
        Scanner s = new Scanner(System.in);
        //Taking input of number of elements in the series
        System.out.println("Enter the Nth term “N” ");
        int n = s.nextInt();
        double result;
        int i=1;
        while(i<=n)
        {
            result = Math.pow(i,3)-Math.pow(i,2); 
            System.out.print((int)result+" ");
            i++;
        }      
    }
}

Output:

Enter the Nth term “N” 
7
0 4 18 48 100 180 294

Method-3: Java Program to Print the Series 0 4 18 48 100 180 …N By Using User Defined Method

Approach:

  • Create Scanner class object.
  • Declare an integer variable say ‘n’ which holds the number of terms in the series.
  • Prompt the user to enter a number as value of n.
  • Call a user defined method say printSeries() by passing n as parameter.
  • Inside method declare an double variable say ‘result’
  • Use a for loop from i=1 to i<=n where the loop is incremented by 1
  • Inside the for loop we will find the value of result=(i^3)-(i^2).
  • Print the result in the series.

Program:

import java.util.*;
public class Main
{
    public static void main(String[] args)
    {
        // creating object of scanner class 
        Scanner s = new Scanner(System.in);
        //Taking input of number of elements in the series
        System.out.println("Enter the value of Nth term 'N' ");
        int n = s.nextInt();
        // calling printSeries method to print the series
        printSeries(n);
    }
    
    //printSeries metthod to print the series
    public static void printSeries(int n)
    {
        double result;
        //for loop to print the series
        for (int i = 1; i <=n; i++) 
        {
            result = Math.pow(i,3)-Math.pow(i,2); 
            System.out.print((int)result+" ");
        } 
    }
}

Output:

Enter the value of Nth term 'N' 
9
0 4 18 48 100 180 294 448 648

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