switch分支

public class SwitchDemo
{
	public void showDays(int iMonth)
	{
		int iDays=0;
		switch(iMonth)
		{
			case 2: iDays=28;break;
			case 4: iDays=30;break;
			case 6: iDays=30;break;
			case 9: iDays=30;break;
			case 11:iDays=30;break;
			default:iDays=31;
		}
			System.out.println(iMonth+"yue you"+iDays+"tian");
			
	}
	public static void main(String args[])
	{
			SwitchDemo obj=new SwitchDemo();
			obj.showDays(3);
	}
}