java jlabel array

Question

what's wrong with this? the labels[] causes an error

JLabel labels[] = new JLabel();
    for (int i =  0; i < 4; i++) {
       labels[i] = new JLabel("Label" + i);
       panel.add(labels[i]);
 }

user467871 · Accepted Answer · 2011-01-16 07:25:48Z

2

JLabel label = new JLabel();

initialize a single Jlabel if you want to initialize array you should do like that

JLabel labels[] = new JLabel[4];

answered Jan 16, 2011 at 7:25

user467871

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1 Comment

it is not related to with that code maybe there errors after that

lweller · Accepted Answer · 2011-01-16 07:41:41Z

2

JLabel labels[] = new JLabel[4];

and then you have to create new instances for each array entry (otherwise array contains only nulls)

for(JLabel label : labels) {
  label = new JLabel();
}

answered Jan 16, 2011 at 7:29

lweller

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Nipuna · Accepted Answer · 2011-03-07 04:18:10Z

0

First of all you must define the array. Then you can play with the methods in it.

Labels = new JLabel[]{ label1, label2, label3 };

for(int i=0; i<Labels.length; i++){
         add(Labels[i]);
}

answered Mar 7, 2011 at 4:18

Nipuna

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Yassine Klilich · Accepted Answer · 2017-08-27 23:38:43Z

0

there is a problem with declaring JLabel array,

JLabel labels[] = new JLabel(); //Incorrect code
JLabel[] labels = new JLabel[enter the size]; //Correct One

answered Aug 27, 2017 at 23:38

Yassine Klilich

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