Java : Switch

Use switch Statement when you know the possible values and you want do something for each any case.

Example :

public boolean isAcceptCard(){
    MyCard card = new MyCard("8888 8888 8888 8888");
    boolean isAccept ;
    switch (card.getBranch()) {
        case AMEX:
            accept = true;
            break;
        case MASTERCARD:
            accept = false;
            break;
   }
   return accept;
}

Java doc : https://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html