return array problem

**doha786** · 03-30-2010, 02:43 PM

hi,
the method of my program suppose to return many values that i can call from main method and show in JTable. But it just showing the last one..

Java Code:

public String[][] process(String searchName, String value){
..
FileReader reader;                      
String[][] row=new String[][]{};

Map<String, File> names = new HashMap<String, File>();

try{  
..
...

 for (String found: names.keySet()) {
..
..
[b]row =new String[][]{{found, file.getName(), Long.toString(file.length())}};[/b]
}
}
catch(Exception e) {e.printStackTrace() }
 
return row;

without array, last time i used for String :

row+=found+"\t"+file.getName()+"\t"+file.length()+ "\n";

so, can i make it for this 2D array ?
please help..

**PhHein** · 03-30-2010, 03:22 PM

You're overwriting your String[][] on every loop. You have to append:

Java Code:

String[][] row= null;

Map<String, File> names = new HashMap<String, File>();

try{  
..
...
row = new String[names.keySet().size()][];
int i = 0;
 for (String found: names.keySet()) {
..
..
row[i] =new String[]{found, file.getName(), Long.toString(file.length())};
i++;
}
}
catch(Exception e) {e.printStackTrace() }