How to Check if a Class is an Instance of java.lang.Enum in Java?

How can I check if a class is an instance of java.lang.Enum in Java?

if (test.MyEnum.class instanceof Enum<?>) { ... }

In Java, you can determine if a class is an instance of an enumeration (i.e., a subclass of java.lang.Enum) by using the Class.isEnum() method, which offers a straightforward solution.

if (test.MyEnum.class.isEnum()) {
    obj = resultWrapper.getEnum(i, test.MyEnum.class);
} else {
    obj = resultWrapper.getObject(i);
}

Causes

• Using 'instanceof' with the.class keyword incorrectly leads to compilation errors.
• Enum types in Java are handled differently than standard classes, necessitating specific methods for inspection.

Solutions

• Utilize the Class.isEnum() method to check if a class is an enum type: `boolean isEnum = test.MyEnum.class.isEnum();`
• This method returns true if the class object represents an enum type, simplifying your earlier approach.

Mistake: Using 'instanceof' incorrectly on classes instead of the isEnum() method.

Solution: Replace your check with the isEnum() method for accurate results.

Mistake: Assuming all classes can be checked in the same way with instanceof.

Solution: Understand that enums require specific handling through appropriate methods.