JAVA EE: Java Tutorial : Java IO (Java File or Dir exists | How to check if a file or Dir exists)

Thursday 10 November 2016

Java Tutorial : Java IO (Java File or Dir exists | How to check if a file or Dir exists)

Click here to watch in Youtube :
https://www.youtube.com/watch?v=eQL5gOkZcIA&list=UUhwKlOVR041tngjerWxVccw

FileDemo1.java

import java.io.File;

/*
 *Once you have instantiated a File object we can check
 *if the corresponding file/dir actually exists already.
 */
public class FileDemo1
{

    public static void main(String[] args)
    {
        File file = new File("D:/work/myfile.txt");
        /*
         * Tests whether the file or directory denoted by
         * this abstract pathname exists.
         */
        boolean isExist = file.exists();
        System.out.println(file.getAbsolutePath() + " is exist? = " + isExist);
    }

}

Output

D:\work\myfile.txt is exist? = true

FileDemo2.java

import java.io.File;

/*
 *Once you have instantiated a File object we can check
 *if the corresponding file/dir actually exists already.
 */
public class FileDemo2
{

    public static void main(String[] args)
    {
        File file = new File("D:/work/");
        /*
         * Tests whether the file or directory denoted by
         * this abstract pathname exists.
         */
        boolean isExist = file.exists();
        System.out.println(file.getAbsolutePath() + " is exist? = " + isExist);
    }

}