private void parseInputLine(String line){
		if(line == null){
			return;
		}
		String[] strs = line.split("\\s+");
		if(strs==null || strs.length!=3){
			return;
		}
		int arriveTime = Integer.parseInt(strs[0]);
		int spareTime = Integer.parseInt(strs[1]);
		int priority = Integer.parseInt(strs[2]);
		Task task = new Task(arriveTime,spareTime,priority,spareTime);
		if(tasks == null){
			tasks = new ArrayList<Task>();
		}
		this.tasks.add(task);
	}