String array definition in JAVA

Question

Is it possible to define array in this way in JAVA, otherwise are there an alternative close this definition?

private final int CONST_0= 0;
private final int CONST_1= 1;
private final int CONST_2= 2;
private final int CONST_3= 3;
private final String[] CONST_TXTRECORDS = new String[] 
                                          {[CONST_0] = "test0",
                                          {[CONST_1] = "test1",
                                          {[CONST_2] = "test2",
                                          {[CONST_3] = "test3"};

this is not syntactically correct. I suggest that you use enum instead. — Qnan
– Qnan, Commented Sep 7, 2012 at 9:21

Wouter Lievens · Accepted Answer · 2016-10-03 12:57:11Z

4

Perhaps you should look at enums.

http://docs.oracle.com/javase/tutorial/java/javaOO/enum.html

You can use enums as map keys, using either the generic Map classes or the specialized EnumMap which I guess is a bit more efficient.

https://docs.oracle.com/javase/8/docs/api/java/util/EnumMap.html

edited Oct 3, 2016 at 12:57

answered Sep 7, 2012 at 9:21

Wouter Lievens

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5 Comments

Wouter Lievens Over a year ago

You're right, I just pasted the first thing google threw at me.

Peter Lawrey Over a year ago

Google often picks Javadocs from 1.4.2 and 1.5.0. Java 6 will be EOL in a couple of months. ;)

Sean Patrick Floyd Over a year ago

@PeterLawrey you're right of course, but I haven't yet worked with any client in the real world that used Java 7 (which I guess is the reason that I still link to 6)

Peter Lawrey Over a year ago

@SeanPatrickFloyd You are right but I think when people look at your answers in years to come, they might be using Java 7 (and it looks nicer ;)

Sean Patrick Floyd Over a year ago

@PeterLawrey yeah, perhaps I'll start doing that

Sean Patrick Floyd · Accepted Answer · 2012-09-07 09:23:22Z

3

What you are trying to define is not an array, but an associative array, or in Java speak, a Map.

You probably want to use a HashMap (or, as the others wrote, an enum, depending on how static your requirements are).

See: Java Tutorial > Collections Trail > The Map Interface

answered Sep 7, 2012 at 9:23

Sean Patrick Floyd

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Comments

Baz · Accepted Answer · 2012-09-07 09:32:01Z

2

public enum MyNum {
    CONST_0(new int[]{0},"test0"),
    CONST_1(new int[]{1},"test1"),
    CONST_2(new int[]{2},"test2"),
    CONST_3(new int[]{3},"test3");

    private String value;
    private int key[] ;

    MyNum(int key[],String value){
        this.value = value;
        this.key = key;
    }

    public String getValue() {
        return value;
    }

    public int[] getKey() {
        return key;
    }
}

edited Sep 7, 2012 at 9:32

Baz

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answered Sep 7, 2012 at 9:30

sreemanth pulagam

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