Java File canRead() method example

public boolean canRead()

This method returns boolean, true if and only if the file specified by this abstract pathname exists and can be read by the application; false otherwise.

Requires Java 1.0 and up

Below is a java code demonstrates the use of canRead() method of File class. The example presented might be simple however it shows the behaviour of the canRead() method. Basically we initialize a new File object that corresponds to a physical file which does have permission for reading and then the canExecute() method is used to check if the input file can be read.

package com.javatutorialhq.java.examples;

import java.io.File;

/*
 * This example source code demonstrates the use of  
 * canRead() method of File class.
 * 
 */

public class FileCanReadExample {

	public static void main(String[] args) {
		
		// initialize File object
		File file = new File("C:javatutorialhqtest.bat");
		// check first if file exists
		if(file.exists()){
			//check if file can be execute
			if(file.canRead(){
				System.out.println("user have permission to read the file");
			}
			else{
				System.out.println("File cannot be read");
			}
		}
		else{
			System.out.println("File does not exists");
		}	
		
		
	}

}

Below is the sample output when you run the above example.

• Java File Class Tutorial
• Java Tutorial

• Oracle Java Documentation