Factorial Program Using Java With I/O Streams

In this program, you will learn how to create a Factorial program in a Java program, using Input Output stream.

Introduction

 

In this blog, I will explain about the Factorial program, using Java I/O stream. It is very simple in Java programming. The output will be displayed in the Run module.

  

Software Requirement

 

JDK1.3.

 

Simple program

import java.io.*;
class da {
 public static void main(String arg[]) throws IOException {
  DataInputStream d = new DataInputStream(System.in);
  int i, n, f;
  String s;
  f = 1;
  System.out.print("enter the number : ");
  s = d.readLine();
  n = Integer.parseInt(s);
  for (i = 1; i <= n; i++) {
   f = f * i;
  }
  System.out.println("\n" + "factorial of given number " + n + " is : " + f);
 }
}

Explanation

 

In this blog, I will explain about the Factorial program, using Java I/O stream. The output will be displayed in the Run module.

Output