Avoid Switch statement redundancy when multiple Cases do the same thing?

Question

I have multiple cases in a switch that do the same thing, like so: (this is written in Java)

 case 1:
     aMethod();
     break;
 case 2:
     aMethod();
     b         


        

Answer 1

case 1:
case 2:
case 3:
    aMethod();
    break;
case 4:
    anotherMethod();
    break;

This works because when it happens to be case 1 (for instance), it falls through to case 2 (no break statement), which then falls through to case 3.