Factorial Program In Java

Java program for factorial number. Here I have tried to introduce you a simple factorial program. This is an automated factorial java program going to design. To find factorial of a number I have divided this factorial java program into tree basic part to make you easily understand. Must check Armstrong number program in Java and Palindrome number in java.

factorial java program

Factorial program part

Division of java program to find factorial of a number. Such as:-

Above I have described the brief of this article that how? this is going to go write a program to find factorial of a number. To make easy to understand I have decided this algorithm to find factorial of a number into three basic part.

So let’s see what is the first factorial program. Visit on How to reverse a number in java.

Java program for factorial smaller number less than 50

This first program is simpler for loop programs in java with output. Using this java program users can get factorial number between the greater than 1 and less than 50. Here this “java program for factorial” users can modify the grater boundary number Which I have fixed 50. This boundary number users can set till the 64 bit only.

This ‘factorial java program; boundary number users can set till 64 bit only because I have used here data types long, Which has the limitation of 64 bit. So now let’s see the algorithm to find factorial of a numberCount repeated character in a string.

1| import java.util.*;
2| import java.math.*;
3| public class factorial
4| {
5| static void fact(long x)
6| {
7| long num=x;
8| long factrial_each_num_multiplication=1;
9| if (x>0)
10| {
11| for (int i=0; i<num; i++)
12| {
13| factrial_each_num_multiplication=factrial_each_num_multiplication*x;
14| x–;
15| }
16| System.out.print(“This is sum of factorial number ::”+factrial_each_num_multiplication);
17| }
18| }
19| public static void main(String[] args)
20| {
21| Scanner input=new Scanner(System.in);
22| System.out.print(“Enter number here :: “);
23| long sum_of_acetoria_number=input.nextInt();
24| fact(sum_of_acetoria_number);
25| System.out.println();
26| }
27| }

Java program for factorial smaller number less than 50: Output

 for loop programs in java with output

Factorial of large numbers in java using BitInteger

Factorial program in java using scanner class and biginteger range. To use BigInteger range here I have imported a package, Which we call by import java.util.BigInteger; This helps to design algorithm to find factorial of any number. This BigInterger data type is a string.

Also, you can use java factorial recursive method and many more asked me to make factorial program in java without using a loop which is not good practice. Suggested program Find the minimum and maximum sum.

So let’s see “java program for factorial number”.

3| import java.util.*;
4| import java.math.BigInteger;
5| public class bigint
6| {
7| public static void main(String[] args)
8| {
9| Scanner input=new Scanner(System.in);
10| int i=input.nextInt();
11| System.out.println(fact(i));
12| }
13| static BigInteger fact(int n)
14| {
15| BigInteger ans=new BigInteger(“1”);
16| for (int i=2; i<=n; i++)
17| {
18| ans=ans.multiply(BigInteger.valueOf(i));
19| }
20| return (ans);
21| }
22| }

Factorial of large numbers in java using BitInteger: Output

factorial java program

Design a single factorial java program to get factorial of any number

Mostly have asked that how to write a program in java for factorial any number. To get this first you are strongly required to understand first both method because of this last method nothing but only I have merged first and the second method to find factorial of a number.

So let’s see this how to write a program in java for an amazing algorithm to find factorial of a number.

1| import java.util.*;
2| import java.math.BigInteger;
3|
4| public class factto
5| {
6| public static void main(String[] args)
7| {
8| System.out.print(“Enter number here :: “);
9| Scanner input=new Scanner(System.in);
10| int i=input.nextInt();
11| System.out.println();
12| if (i<=50)
13| {
14| fact(i);
15| }else
16| {
17| fact(i);
18| }
19| System.out.println(fact(i));
20| System.out.println();
21| }
22| static BigInteger fact(int n)
23| {
24| BigInteger ans=new BigInteger(“1”);
25| for (int i=2; i<=n; i++)
26| {
27| ans=ans.multiply(BigInteger.valueOf(i));
28| }
29| return (ans);
30| }
31| static void fact(long x)
32| {
33| long num=x;
34| long factrial_each_num_multiplication=1;
35| if (x>0)
36| {
37| for (int i=0; i<num; i++)
38| {
39| factrial_each_num_multiplication=factrial_each_num_multiplication*x;
40| x–;
41| }
42| System.out.print(“This is sum of factorial number ::”+factrial_each_num_multiplication);
43| }
44| }
45| }
Design a single factorial java program to get factorial of any number: Output

for loop programs in java with output

Java program for factorial comment

In this all three factorial java program you will that I have used a common for loop programs in java with output because using this for loop it makes an easier program for both such as in understanding and to deliver output faster.

In all, I have not used high funda to make typical. Above following or understanding factorial program if you face any difficulty so let me know by the below-commenting box.

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