Error in declaring and assigning to string array

Question

I want to declare an array out side the for loop and assign values to the string array. but i am getting an error. please give me a suggestion to do this. my code is given below.

    String[][] data=null; 

    for (int x = 0; x < dtm.getRowCount(); x++) {
            data  = {{"sds","sdsds"}}; <<< im getting error in here.
    }
    DefaultTableModel model = new DefaultTableModel(data, headers);

if your problem solved please mark one of the best answers as accepted... — pinkpanther
– pinkpanther, Commented Jun 7, 2013 at 9:41

gkalpak · Accepted Answer · 2013-06-07 09:33:33Z

3

Try it like this:

String[][] data = new String[dtm.getRowCount()][];
for (int x = 0; x < dtm.getRowCount(); x++) {
    data[x] = new String[]{"sds", "sdsds"};
}
DefaultTableModel model = new DefaultTableModel(data, headers);

See, also, this short demo.

edited Jun 7, 2013 at 9:33

answered Jun 7, 2013 at 9:26

gkalpak

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2 Comments

Nimesh Madushan Over a year ago

i tried above code and it worked for me.. thnax for ur help buddy

gkalpak Over a year ago

@NimeshMadushan: Always glad to help :) If this answer helped you solve your problem, please mark it as "accepted", so users facing a similar problem in the future will be able to spot it easily.

Konstantin Yovkov · Accepted Answer · 2013-06-07 09:25:17Z

2

You're declaring the array in the wrong way. It should be:

 for (int x = 0; x < dtm.getRowCount(); x++) {
     data  = new String[][]{new String[]{"sds","sdsds"}};
 }

Anyway, with the code provided in the question, I don't get the reason for using a loop.

answered Jun 7, 2013 at 9:25

Konstantin Yovkov

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2 Comments

Alderath Over a year ago

Am I understanding something wrong? To me, it looks as if this will create the data 2d-array multiple times and with only one row, and all except the last instance will be thrown away.

Konstantin Yovkov Over a year ago

Yes, that's why I said I don't get the reason for using a loop.

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