Make multiple JLabel in one Array (Java)

Question

In Netbeans: I have add 4 JLabel in one pane of JFrame:

enter image description here

I have create an array of JLabel:

private JLabel[] myLab = new JLabel[]{};

Please, I want to now, it's possible to make this JLabels (jLabel1, jLabel2, jLabel3, jLabel4) in one array, for call in program with MyLab[0], MyLab[ 1], MyLab[2], MyLab[3]?

Yes, probably better to use an ArrayList though. Can you show us what code you have attempted? Do you know what a for loop is? — markspace
– markspace, Commented Sep 23, 2018 at 16:37

Roshana Pitigala · Accepted Answer · 2018-09-23 16:56:41Z

2

Update ^{(as markspace suggested)} :

The correct syntax to create the array is,

private JLabel[] myLab2 = new JLabel[4];

because you need an array with a length of 4 to store 4 elements in the array. By using new JLabel[]{} you are creating an array with a length of 0.

You can't edit the generated codes in NetBeans. So assign the jLables to the array in the constructor after the initComponents(); statement.

myLab[0] = jLabel1;
myLab[1] = jLabel2;
myLab[2] = jLabel3;
myLab[3] = jLabel4;

Now refer jLable1 as myLab[0].

edited Sep 23, 2018 at 16:56

answered Sep 23, 2018 at 16:45

Roshana Pitigala

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1 Comment

markspace Over a year ago

Also the OP's example of creating an array is incorrect. private JLabel[] myLab2 = new JLabel[4]; is the correct syntax.

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