JAVA declaring uninitialized JMenuItem() items inside JMenuItem[] constructor

qraqatit :

I have this code:

JMenuItem itemA;
JMenuItem itemB;
JMenuItem itemC;
JMenuItem[] items = {itemA, itemB, itemC};

What I would like to do is declaring those JMenuItems inside the JMenuItem array constructor so I would spare several lines of else unnecessary code (that is get rid of that initial declaring of those separate items first). I would expect something in line of this fictional code:

JMenuItem[] items = {JMenuItem itemA, JMenuItem itemB, JMenuItem itemC};

...but that does not work, of course. Can anyone enlighten me how to do it, please? BTW those items are initialized later in code.

nah0131 :

Replace this

JMenuItem[] items = {JMenuItem itemA, JMenuItem itemB, JMenuItem itemC};

with this

JMenuItem[] items = {null, null, null}; //option 1
JMenuItem[] items = new JMenuItem[3]; //option 2

Guess you like

Origin http://43.154.161.224:23101/article/api/json?id=307750&siteId=1

JAVA declaring uninitialized JMenuItem() items inside JMenuItem[] constructor

JAVA декларирование неинициализированного JMenuItem () элементы внутри JMenuItem [] конструктора

JAVA declarando sin inicializar JMenuItem () elementos en el interior JMenuItem constructor []

JAVA Deklarieren nicht initialisierte JMenuItem () Elemente in JMenuItem [] Konstruktor

JAVA declarando não inicializado JMenuItem () itens dentro JMenuItem [] construtor

Java hibernate session.get inside constructor

Can we call synchronized method of an object inside the constructor of the object in Java?

JAVA déclarant non initialisée JMenuItem () éléments à l'intérieur JMenuItem constructeur []

Error while declaring a variable inside for-loop along with print statement

Does declaring variables as final, inside methods, improve performance?

Displaying items in ListViews inside a RecyclerView

The constructor and prototype js advanced on the inside

Declaring arrays without using the 'new' keyword in Java

Accessing uninitialized objects in Java: principles, errors and prevention

java error prompts the reason for missing method body or declaring abstraction

Difference between using wildcards and declaring generic type in abstract method in Java

[Java] The difference between declaring variables with interfaces and implementing class declarations

[Java] Constructor

Java constructor

constructor in java

constructor in java

java constructor

Java constructor

Java constructor

java constructor

JMenuItem内の初期化されていないのJMenuItem（）アイテムを宣言JAVA []コンストラクタ

java constructor calls the constructor, this () statement

How can I center flexbox items that are inside of a row?

How can I change items inside a double array?

How to use a property from a constructor inside an instance method in Kotin?