BE THE CODER > Tools and Libs > Google Guava Examples > IO

Google Guava is a java library with lot of utilities and reusable components. This requires the library guava-10.0.jar to be in classpath. The following example shows using Files.equal() API. It returns TRUE if the given files contains the same bytes.

File Name :	com/bethecoder/tutorials/guava/io_tests/FileEqualTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.guava.io_tests;



import java.io.File;

import java.io.IOException;



import com.google.common.base.Charsets;

import com.google.common.io.Files;



public class FileEqualTest {



  /**

   * @param args

   * @throws IOException 

   */

  public static void main(String[] args) throws IOException {

    

    File file = new File("C:\\abcd.txt");

    File file2 = new File("C:\\abcd.copy.txt");

    

    //Copies source file bytes to destination file

    Files.copy(file, file2);

    

    boolean filesEqual = Files.equal(file, file2);

    System.out.println("Both files are equal : " + filesEqual);

    

    //Append some text

    Files.append("BE THE CODER", file, Charsets.UTF_8);

    

    filesEqual = Files.equal(file, file2);

    System.out.println("Both files are equal : " + filesEqual);

  }



}

File Equals