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How to Copy a file from one location to another in Java ?.


Program to demonstrate how to Copy a file from one location to another in Java.

package com.hubberspot.code;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Scanner;


public class CopyFile {

 public static void main(String[] args) {

  // Create a Scanner object which takes System.in object
  // this makes us read values from the console

  Scanner scanner = new Scanner(System.in);

  // In order to copy a file from one location 
  // to another 
  // We will prompt user to enter path of file 
  // in current location and path 
  // of the location where it wants to copy the file

  // Prompting user to enter path of current location 
  // of file
  System.out.println("Enter the path of current location of file : ");

  // Scanner objects nextLine() reads output from the console
  // entered by user and stores into the string variable
  String currentPath = scanner.nextLine().trim();  

  // Prompting user to enter path of target location of file  
  System.out.println("Enter the path of target location of file : ");

  String targetLocation = scanner.nextLine().trim();

  System.out.println();

  // Creating a new file object by passing current file name and
  // target file name along with the location
  File currentFile  = new File(currentPath);
  File targetFile  = new File(targetLocation);  

  // Creating FileOutputStream and FileInputStream variables 
  FileOutputStream fileOutputStream = null;

  FileInputStream fileInputStream = null;
  try {

   // Wrapping the File objects created above within 
   // FileOutputStream and FileInputStream objects
   fileOutputStream = new FileOutputStream(currentFile);
   fileInputStream = new FileInputStream(targetFile);

   // Creating a buffer of byte for storing contents of file
   byte[] buffer = new byte[4096];
   int read;

   // looping the file contents on the current location till
   // it becomes empty
   while ((read = fileInputStream.read(buffer)) != -1) {

    // As each loops terminates the target file gets the 
    // contents of current file in the chunks of buffer 
    fileOutputStream.write(buffer, 0, read);
   }

   // catch blocks for closing of the streams and catching 
   // IOException
  } catch(IOException e) {

   try {
    e.printStackTrace();
    if (fileInputStream != null) {

     fileInputStream.close();     

    }
    if (fileOutputStream != null) {

     fileOutputStream.flush(); 
     fileOutputStream.close();

    }
   }
   catch (IOException e1) {

    e1.printStackTrace();
   }
  }

 }

}





Output of the program : 


 
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