How to Combine two array

Question

I have two array in my applications, in this case i want to combine two array in my application but i tried and failed.. here is my code.. please combine array data and data2 :

Data[] data = {
        new Data(-79.400917f,43.661049f, "New New College Res",
                "Residence building (new concrete high-rise)", "R.drawable.mr_kun"),
        new Data(-79.394524f,43.655796f, "Baldwin Street",
                "Here be many good restaurants!", "R.drawable.mr_kun"),
        new Data(-79.402206f,43.657688f, "College St",
                "Lots of discount computer stores if you forgot a cable or need to buy hardware.", "R.drawable.mr_kun"),    
        new Data(-79.390381f,43.659878f, "Queens Park Subway",
                "Quickest way to the north-south (Yonge-University-Spadina) subway/metro line", "R.drawable.mr_kun"),

};

Data[] data2 = {
        new Data(-79.403732f,43.666801f, "Spadina Subway",
                "Quickest way to the east-west (Bloor-Danforth) subway/metro line", "R.drawable.mr_kun"),
        new Data(-79.399696f,43.667873f, "St George Subway back door",
                "Token-only admittance, else use Spadina or Bedford entrances!", "R.drawable.mr_kun"),
        new Data(-79.384163f,43.655083f, "Eaton Centre (megamall)",
                "One of the largest indoor shopping centres in eastern Canada. Runs from Dundas to Queen.", "R.drawable.mr_kun"),
};

Ronak Mehta · Answer 1 · 2013-04-26T08:06:47.363

5

First convert your String array to List than use addAll metod to add List

Example

ArrayList<String> first;
ArrayList<String> second;
second.addAll(first);

edited Apr 26 '13 at 08:06

answered Apr 26 '13 at 07:59

Ronak Mehta

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i have tried but error .. my type array is Data not string.. please give me help.. – Jamaludin Iqba Apr 26 '13 at 08:06
1

that is why he wrote "FIRST convert String array to List :-) – bofredo Apr 26 '13 at 08:08
give me any other solution..?? – Jamaludin Iqba Apr 26 '13 at 08:09
2

(ﾉಥ益ಥ）ﾉ he gave you the solution. – aran Apr 26 '13 at 08:10
and where is OP's String array? I think he is using array of Objects.. right? And how he can convert array of object into array of String... do you have any clue? – Pankaj Kumar Apr 26 '13 at 08:20
Yes convert object array to simple array or directly to arrayList – Ronak Mehta Apr 26 '13 at 08:26
why converting Data to string? why not set type of list to Data? this is not REAL solution – user902383 Apr 26 '13 at 09:01
yeah can you give me other answer..? – Jamaludin Iqba Apr 26 '13 at 15:50

score 3 · Accepted Answer · answered Apr 26 '13 at 08:12

3

Here you go.

Data[] mergedArray = new Data[data.length + data2.length];
System.arraycopy(data, 0, mergedArray, 0, data.length);
System.arraycopy(data2, 0, mergedArray, data.length, data2.length);

answered Apr 26 '13 at 08:12

unzoomed

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+1 Nice finding... this seems to be work.. – Pankaj Kumar Apr 26 '13 at 08:20
I din't ask this question... and I am sure if OP finds this answer worked for him he will accept your answer.. :) – Pankaj Kumar Apr 26 '13 at 08:23
Iam sorry but not work.. – Jamaludin Iqba Apr 26 '13 at 14:43
please help me friend.. – Jamaludin Iqba Apr 26 '13 at 15:50

Maniek · Answer 3 · 2013-04-26T08:44:13.723

0

You can easly use Apache Commons Lang library.
Then your code will look:

ArrayUtils.addAll(data, data2);

Here is documetation for this method:
http://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/ArrayUtils.html#addAll(java.lang.Object[], java.lang.Object[])

edited Apr 26 '13 at 08:44

answered Apr 26 '13 at 08:35

Maniek

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help me guys.. not work.. – Jamaludin Iqba Apr 26 '13 at 15:51

How to Combine two array

3 Answers3