Question

wap to display series 1,2,6,24,120 in java​

Answer 1

Question:-

• To print in Java the following series:

Series:-

1,2,6,24,120

Logic:-

d=d+d*I; //I is a loop variable

Code:-

package Coder;

public class Series

{

public static void main (String[] args)

{

int i,d=1;

for(i=1;i<=5;i++)

{

System.out.print(d+" ");

d+=d*i;

}

}

}

Variable description:-

• I :- Loop variable

• d :- Local variable used to store the numbers.

Output:-

1 2 6 24 120

•For verification, please check the attachments.

Answer 2

Required Answer:-

Question:

Write a Program to display the series in java.

1 2 6 24 120....N terms.

Program:

This is a simple program. Read this post to get your answer.

Here comes the program.

import java.util.*;

public class Series

{

public static void main(String[] args)

{

Scanner sc = new Scanner(System.in);

System.out.print("Enter n - ");

int n=sc.nextInt(), d=1, i;

for(i=1;i<=n;i++,d*=i)

System.out.print(d+" ");

sc.close();

}

}

Logic:

It is a factorial series. Factorial of a number is the product of all the natural numbers from 1 to the number.

1! = 1

2! = 2

3! = 6

4! = 24

In this program, the d variable calculates the factorial and the it is displayed after each iteration.

Output is attached.