范例1:枚举可以直接在switch上使用
enum Color {
RED, BLUE, GREEN;
}
public class Demo {
public static void main(String[] args) {
Color c = Color.GREEN;
switch (c) {
case RED:
System.out.println("红色");
break;
case GREEN:
System.out.println("绿色");
break;
case BLUE:
System.out.println("蓝色");
default:
break;
}
}
}
