public static void main(String[] args) throws Exception {
		int i;

		System.out.println("1: for train and predict");
		System.out.println("2: for test");
		System.out.println("3: for excute meta");
		
		if (args.length == 0) {
			System.out.println("input a method");
			System.exit(0);
		} else if (args.length == 1) {
			i = Integer.valueOf(args[0]);

			// Scanner scan = new Scanner(System.in);
			// i = scan.nextInt();
			if (i == 1)
				write1("exec.sh");
			if (i == 2)
				write2("text/CRF/test.sh");
			if (i == 3)
				write3("exutmeta.sh");
			if(i==4)
				write4("stanford.sh");
			if(i==5)
				write5("text/CRF/20.sh");
			if(i==6){
				write6("/home/lizhou/Desktop/exe.sh");
			}
		}
		
		else{
			System.out.println("invalid args, input one");
			System.exit(0);
		}
	}