How are enum constructors initialised

[Vishal Hegde]

are enums constructors intialised automatically without the creation of objects

example: enum Coffee
{
BIG(10),MEDIUM(20),LARGE(30);
Coffee(int ounces)
{
this.ounces=ounces;
}
private int ounces;

[Vijitha Kumara]

Vishal Hegde wrote:are enums constructors intialised automatically without the creation of objects

Enum has a consructor which will be invoked by the enum declaration in your code (programmers cannot invoke it).

[Vishal Hegde]

ok are enum constructors private or can it contain all the access modifier

[Hariharan Ram Kumar]

Enum constructors can contain any modifiers.

[Jesper de Jong]

Hariharan Ram Kumar wrote:Enum constructors can contain any modifiers.

No they can't. Did you try it out? If you try making the constructor of an enum public or protected, you'll get a compiler error.

[Vishal Hegde]

then are enum constructors private???

[Campbell Ritchie]

Vishal Hegde wrote:then are enum constructors private???

As far as I know, yes. In the Java Language Specification it doesn't say a lot about enum constructors, only that a default enum constructor is private.

[Satya Maheshwari]

Could you tell the use case for invoking enum construtors?
One way of looking enum is like a set of known constants. Hence I am curious to know the use case of 'constructing constants'.

[Campbell Ritchie]

Like most things, there is something useful in the Java™ Tutorials.

[Rob Spoor]

Try the following:

public enum Test
{
    INT(1),
    
    LONG(1L),
    
    SHORT((short)1),
    
    BYTE((byte)1);
    
    private Test(int i)
    {
    }
    
    protected Test(long l)
    {
    }
    
    Test(short s)
    {
    }
    
    public Test(byte b)
    {
    }
}