Count the number of “trues” for n booleans

Boolean a, b, c, d;

I would like to count the number of trues, each result should have its own associated action. Maybe something like:

int result = getResult(a, b, c, d);
switch (result) {
    case 0: break;
    case 1: break;
    case 2: break;
    case 3: break;
    default: break;
}

Any idea of how to write the getResult method body a pretty way? In the example, I used only four, but it should be extendable to a bigger number of booleans. Any other way to proceed is welcome.

Answer

Write a variadic method?

int getResult(boolean... vars) {
    int count = 0;
    for (boolean var : vars) {
        count += (var ? 1 : 0);
    }
    return count;
}