Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import java.io.File; import java.io.FileOutputStream; public class Main { public static void intArrayToFile(Context myContext, String filename, int[] array) { File root = myContext.getFilesDir(); File current = new File(root, filename); current.delete(); FileOutputStream outputStream; try { outputStream = myContext.openFileOutput(filename, Context.MODE_APPEND); for (int i : array) { String s = "" + i; outputStream.write(s.getBytes()); outputStream.write("\n".getBytes()); } outputStream.close(); } catch (Exception e) { e.printStackTrace(); } } }