public static **** main(String args[]){ 
try{ 
// File (or directory) to be moved 
File file = new File("file.txt"); 

// Destination directory 
File dir = new File("gg"); 

// Move file to new directory 
boolean success = file.renameTo(new File(dir, file.getName())); 
if (!success) { 
System.out.println("File moved"); 
} 
} 
catch (Exception ioe){ 
ioe.printStackTrace(); 
} 
}