Why doesn't this Java enum code compile?

Question

enum itProfs {  
    private int sal;
    DEVELOPER(30), ANALYST(20); 
    itProfs(int sal){
        this.sal = sal;
    }
    public int getSal(){
        return sal;
    }   
}

What is the reason?

What error do you get ? It probably tells you exactly what the reason and the problem is ;) — krtek
– krtek, Commented Sep 22, 2011 at 3:47
Is there some reason you didn't make "itProfs" a class, and make DEVELOPER and ANALYST an enum??????? — paulsm4
– paulsm4, Commented Sep 22, 2011 at 3:53
Hi guys!! thank you for your advice. I know the error that the enumeration values first. I want to know the inner implementation in Java why. It is not so intuitive to me. Can you explain this deeper (i.e. memory allocations, internals? Btw this is just a sample code because I'm studying java deeper. — Brevis Iunius
– Brevis Iunius, Commented Sep 22, 2011 at 5:18
ok thanks. readability, that's the word! this feature in Java is just something new to me. @MeBigFatGuy thanks also!! grammar you said. — Brevis Iunius
– Brevis Iunius, Commented Sep 23, 2011 at 2:33

default locale · Accepted Answer · 2011-09-22 03:50:32Z

5

You should put enumeration values first.

enum itProfs {  
    DEVELOPER(30), ANALYST(20); 
    private int sal;
    itProfs(int sal){
        this.sal = sal;
    }
    public int getSal(){
        return sal;
    }   
}

answered Sep 22, 2011 at 3:50

default locale

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4 Comments

Brevis Iunius Over a year ago

Hi guys!! thank you for your quick answer. I know the error that the enumeration values first. I want to know the inner implementation in Java why. It is not so intuitive to me. Can you explain this deeper (i.e. memory allocations, internals?

MeBigFatGuy Over a year ago

just cause. It's how the grammar was defined. They could have done it otherwise, but they didn't

default locale Over a year ago

@BrevisIunius, that has nothing to do with memory allocation. It's just a matter of syntax. I think that the main point is readability here. When someone is looking at enum code the first thing he wants to know is available values. And it would be pretty much uncomfortable to search all the class definition for it.

Brevis Iunius Over a year ago

ok thanks. readability, that's the word! this feature in Java is just something new to me. @MeBigFatGuy thanks also!! grammar you said.

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