Java IO Tutorial - Java File.setReadOnly()


File.setReadOnly() has the following syntax.

public boolean setReadOnly()


In the following code shows how to use File.setReadOnly() method.

/* w  w  w . j ava2  s  . c o m*/


public class Main {
  public static void main(String[] args) {
    File f = new File("C:/test.txt");

    // set file as read only
    boolean bool = f.setReadOnly();

    System.out.println("setReadonly() succeeded?: " + bool);

    // checks whether the file is writable
    bool = f.canWrite();

    System.out.print("Is file writable?: " + bool);


The code above generates the following result.