java switch case

/**
 * @author lautturi.com
 * Java example:java switch case block
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		int con = 2, num = 10;
		switch (con) {
		case 1:
			num = num + 2;
			break;
		case 2:
			num = num - 1;
			break;
		case 3:
			num = num / 2;
			break;
		default:
			num = num * 2;
		}
	}
}