Java Rename file

package com.java.myapp;

import java.io.File;

public class MyClass {

	public static void main(String[] args) {
		
		String filename = "C:\\java\\thaicreate.txt";
		
		String newname = "C:\\java\\thaicreate2.txt";
		
        File file1 = new File(filename);
        File file2 = new File(newname);
        
        boolean success = file1.renameTo(file2);
        if (success) {
        	System.out.println("Rename success");
        } else {
        	System.out.println("Rename failed");
        }
        
	}	
	
}