Java, questions about switches and cases?

Question

So I want to do a certain action 60 % of the time and another action 40% of the time. And sometimes have it doing neither. The best way I can think to do this is through switche

Answer 1

If you want same action to happen for multiple cases, then don't put break. For example

case 1:
case 2:
do action 1; break;

In this case, action 1 will happen for both case 1 and 2.