import java.io.*;

public class DeleteFile{
	private static void deletefile(String file){
		File f1 = new File(file);
		boolean success = f1.delete();
		if (!success){
			System.out.println("Deletion failed.");
			System.exit(0);
		}else{
			System.out.println("File deleted.");
		}
	}
	public static void main(String[] args){
		switch(args.length){
			case 0: System.out.println("File has not mentioned.");
					System.exit(0);
			case 1: deletefile(args[0]);
					System.exit(0);
			default : System.out.println("Multiple files are not allow.");
					  System.exit(0);
		}
	}
}