Password Security Manager Access File Java

Password Security Manager Access File
java code

/*
 * Copyright (c) 1995-1997 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
import java.io.*;

public class PasswordSecurityManager extends SecurityManager {

    private String password;
    private BufferedReader buffy;

    public PasswordSecurityManager(String p, BufferedReader b) {
        super();
        this.password = p;
	this.buffy = b;
    }

    private boolean accessOK() {
        int c;
        String response;

        System.out.println("What's the secret password?");
        try {
            response = buffy.readLine();
            if (response.equals(password))
                return true;
            else
                return false;
        } catch (IOException e) {
            return false;
        }
    }
    public void checkRead(FileDescriptor filedescriptor) {
        if (!accessOK())
            throw new SecurityException("Not a Chance!");
    }
    public void checkRead(String filename) {
        if (!accessOK())
            throw new SecurityException("No Way!");
    }
    public void checkRead(String filename, Object executionContext) {
        if (!accessOK())
            throw new SecurityException("Forget It!");
    }
    public void checkWrite(FileDescriptor filedescriptor) {
        if (!accessOK())
            throw new SecurityException("Not!");
    }
    public void checkWrite(String filename) {
        if (!accessOK())
            throw new SecurityException("Not Even!");
    }
    public void checkPropertyAccess(String s) { }
    public void checkPropertiesAccess() { }
}