Export My Data On CSV File From App Android

I have a class: public class A() { private List e; private int nE; private int nC; private int tC; private int bL; private float mA; private float mP; private int eP;`

Solution 1:

You'll need to use a library such as opencsv (found here: http://sourceforge.net/projects/opencsv/)

To write data to a file you'll need to do something similar to this:

String csv = android.os.Environment.getExternalStorageDirectory().getAbsolutePath();
CSVWriter writer = new CSVWriter(new FileWriter(csv));

List<String[]> data = new ArrayList<String[]>();
data.add(new String[] {"India", "New Delhi"});
data.add(new String[] {"United States", "Washington D.C"});
data.add(new String[] {"Germany", "Berlin"});

writer.writeAll(data);

writer.close();

(modified from here: http://viralpatel.net/blogs/java-read-write-csv-file/)

to write a file to storage you will need the following permission:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />