从整数值（序数）获取枚举

Posted 2021-02-25

A simple way to get the enum indicated by its ordinal value.

public class EnumTester {
 
    enum Color { RED, GREEN, BLUE };
 
    public static void main(String[] args) {
 
        int selection = 1;
        Color selectedColor = Color.values()[ selection ];
 
        System.out.println("Selected color ="+selectedColor);
    }
}