Thread: switch question

I have a simple switch:

Code:

int sumnum = 3;
switch(sumnum) {
	case 1:
		break;
	case 2:
		dosth();
		break;
	case 3:
		//will it preform action here - yes
	case 3:
	case 4:
		//will it go here?
		break;		
}

So if I pass number 3 to switch, will it preform actions on case 3, what about case 3, 4?