ClockSave.java

/**
 * @(#)ClockSave.java
 *
 *
 * @author 
 * @version 1.00 2019/12/1
 */
 package clock;
import java.io.IOException;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;


public class ClockSave {
	
	public static void main(String[] args){
		if(args.length <3 || args.length >4){
			System.out.println("Bad usage: Should be clock.clockSave filename width height [HH:mm:ss]");
			return;
		}
		
		int h, w;
		try{
			w = Integer.parseInt(args[1]);
			h = Integer.parseInt(args[2]);
		}
		catch(NumberFormatException e){
			System.out.println("Bad usage: Should be clock.clockSave filename width height [HH:mm:ss]");
			return;
		}
		
		LocalTime time;
		if(args.length == 4){
			try{
				DateTimeFormatter df = DateTimeFormatter.ofPattern("HH:mm:ss");
				time = LocalTime.parse(args[3],df);
			}
			catch(DateTimeParseException e){
				System.out.println("Bad usage: Should be clock.clockSave filename width height [HH:mm:ss]");
				return;
			}
		}
		else{
			time = LocalTime.now();
		}
		try{
			new CoolPaint().saveClock(w,h,time,args[0]);
		}catch (IOException e){
			System.out.println("Error on image output: " + e.getMessage());
		}
	}
    
}