Why can't I use switch statement on a String?

Question

Is this functionality going to be put into a later Java version?

Can someone explain why I can\'t do this, as in, the technical way Java\'s switch state

Answer 1

In Java 11+ it's possible with variables too. The only condition is it must be a constant.

For Example:

final String LEFT = "left";
final String RIGHT = "right";
final String UP = "up";
final String DOWN = "down";

String var = ...;

switch (var) {
    case LEFT:
    case RIGHT:
    case DOWN:
    default:
        return 0;
}

PS. I've not tried this with earlier jdks. So please update the answer if it's supported there too.