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java - Use switch statement to compare a string against an enum

I'm making (my own version of)roulette with Java, and one of the types of bets a player can make is to choose the color that is going to be rolled. (Even is black, odd is red). Is there a way I can use a switch statement to compare a string against an enum?

private enum colors{red, black};
private String colorGuess;
private boolean colorVerify = false;
public void getColorGuess(){
do{
Scanner in = new Scanner(System.in);
colorGuess = in.nextLine();
switch(colors){
case red:
    colorVerify = true;
    break;
case black:
    colorVerify = true;
    break;
default:
    System.out.println("Invalid color selection!");
    break;
}while(colorVerify = false);

This is what i'm trying to get but it's not letting me use the enum 'colors' in a switch statement.

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1 Answer

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by (71.8m points)

You must have an instance of an enum type (its member) on which you switch. You are trying to switch on the Enum class itself, which is a meaningless construct. So you probably need

colors col = colors.valueOf(colorGuess);
switch (col) ...

BTW the name should be Colors, not colors to respect the very important and non-optional Java naming convention.


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