Java tutorial
//package com.java2s; import android.content.Context; import java.io.FileOutputStream; import java.io.ObjectOutputStream; import java.io.Serializable; public class Main { public static boolean saveObject(Context cxt, Serializable obj, String file) { FileOutputStream fos = null; ObjectOutputStream oos = null; try { fos = cxt.openFileOutput(file, Context.MODE_PRIVATE); oos = new ObjectOutputStream(fos); oos.writeObject(obj); oos.flush(); return true; } catch (Exception e) { e.printStackTrace(); return false; } finally { try { oos.close(); } catch (Exception e) { } try { fos.close(); } catch (Exception e) { } } } }