Java.io.File.exists() Method

Advertisements


Description

The java.io.File.exists() method tests the existence of the file or directory defined by this abstract pathname.

Declaration

Following is the declaration for java.io.File.exists() method:

public boolean exists()

Parameters

  • NA

Return Value

The method returns boolean true, if and only if the file defined by the abstract pathname exists; else false

Exception

  • NA

Example

The following example shows the usage of java.io.File.exists() method.

package com.tutorialspoint;

import java.io.File;

public class FileDemo {
   public static void main(String[] args) {
      
      File f = null;
      boolean bool = false;
      
      try{
         // create new files
         f = new File("test.txt");
         
         // create new file in the system
         f.createNewFile();
         
         // tests if file exists
         bool = f.exists();
         
         // prints
         System.out.println("File exists: "+bool);
         
         if(bool == true)
         {
            // delete() invoked
            f.delete();
            System.out.println("delete() invoked");
         }
         
         // tests if file exists
         bool = f.exists();
         
         // prints
         System.out.print("File exists: "+bool);
         
      }catch(Exception e){
         // if any error occurs
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result:

File exists: true
delete() invoked
File exists: false



Advertisements
Advertisements