Classes cannot directly extend java.lang.Enum

Question

I am getting the error classes cannot directly extends java.lang.enum in my following code

public final class ConversionMode extends Enum
{

public static final ConversionMode TO_XLIFF;
public static final ConversionMode FROM_XLIFF;
private static final ConversionMode $VALUES[];

public static final ConversionMode[] values()
{
    return (ConversionMode[])$VALUES.clone();
}

public static ConversionMode valueOf(String s)
{
    return (ConversionMode)Enum.valueOf(file2xliff4j/ConversionMode, s);
}

private ConversionMode(String s, int i)
{
    super(s, i);
}

static 
{
    TO_XLIFF = new ConversionMode("TO_XLIFF", 0);
    FROM_XLIFF = new ConversionMode("FROM_XLIFF", 1);
    $VALUES = (new ConversionMode[] {
        TO_XLIFF, FROM_XLIFF
    });
}
}

I also refer this link, but I am getting it properly so please give me the solution what I need to do?

why are you extending a class with enum? What is your purpose? — Prasad Kharkar
– Prasad Kharkar, Commented Sep 28, 2013 at 6:01
@PrasadKharkar: Possibly trying to recompile disassembled code? — user149341
– user149341, Commented Sep 28, 2013 at 6:02
This will help you . thejavageek.com/2013/08/01/why-use-enumerations-in-java — Prasad Kharkar
– Prasad Kharkar, Commented Sep 28, 2013 at 6:11
@Prasad Kharkar if(mode.equals(ConversionMode.TO_XLIFF) && filetype == null) { return "Specify the file type."; } In this function i want to access ConversionMode value what should i need to do? — Aditya
– Aditya, Commented Sep 28, 2013 at 12:04

JB Nizet · Accepted Answer · 2013-09-28 06:41:01Z

8

That's not how you create an enum in Java. Here's how you do it:

public enum ConversionMode {
    TO_XLIFF,
    FROM_XLIFF
}

That's all. The values(), valueOf(), ordinal() and other enum methods are implemented for you.

As always in Java, there is a tutorial about enums.

edited Sep 28, 2013 at 6:41

answered Sep 28, 2013 at 6:01

JB Nizet

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Comments

Suresh Atta · Accepted Answer · 2013-09-28 06:13:48Z

2

No you cannot extends ENUM

JLS#8.9

An enum type is implicitly final unless it contains at least one enum constant that has a class body.

Example

enum Color {
    RED, GREEN, BLUE;

}

If you see the Language Specification, a complete example is there how to use Enum and getting values etc ...

edited Sep 28, 2013 at 6:13

answered Sep 28, 2013 at 6:02

Suresh Atta

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Comments

brak2718 · Accepted Answer · 2013-09-28 06:03:55Z

0

This is not how to make enums. You don't extend enum.

public enum ConversionMode {
    TO_XLIFF,
    FROM_XLIFF,
...

answered Sep 28, 2013 at 6:03

brak2718

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