How do I initialize a variable given by an “if then” statement?

Question

I'm trying to make a simple code to play Rock, Paper, Scizzors, there is more to the code however this is the important part

    int comResult = (int)(Math.random() * 3);
    String comChoice;
    if (comResult == 0) {
        comChoice = "rock";
    } else if (comResult == 1) {
        comChoice = "scizzors";
    } else if (comResult == 2) {
        comChoice = "paper";
    }

    String results;
    if (comChoice == humanChoice)

When I get to comparing the computers choice to the humans the computer says that I haven't declared a value for comChoice even though I put it in the if then statement, how do I properly declare the value

Answer 1

You can add an "else" at the end of your condition block to make sure comChoice gets initialized.

if (comResult == 0) {
    comChoice = "rock";
} else if (comResult == 1) {
    comChoice = "scizzors";
} else if (comResult == 2) {
    comChoice = "paper";
} else {
    comChoice = "invalid input";
}

Answer 2

您可以在默认情况下使用switch。