Deleting empty directories

Delete.java

import java.io.File;

public class Delete {

	public static void main(String[] args) {
		
		if(args.length != 1){
			System.out.println("ERROR: A path must be specified.");
			System.exit(0);
		}else{
			long start = System.nanoTime();
			
			File directory = new File(args[0]);
			deleteEmptyDirectories(directory);
			
			long finish = System.nanoTime();
			System.out.println("Execution time = " + (finish-start)/1000000f + " milliseconds ");
		}
		
		

	}
	
	
	public static void deleteEmptyDirectories(File file){
		
		if(file.isDirectory()){
			
			if(file.list().length == 0){
				file.delete();
				System.out.println("Deleted directory: "+file.getAbsolutePath());
			}else{
				String[] files = file.list();
				
				for(String temp: files){
					File fileDelete = new File(file, temp);
					deleteEmptyDirectories(fileDelete);
				}
				
				if(file.list().length == 0){
					file.delete();
					System.out.println("Deleted directory: "+file.getAbsolutePath());
				}
			}
		}
	}

}