Android append text file

Question

I am tring to record the wake time and sleep time from a dialog picker to a text file like this, but the call to the method commitToFile2 doesn't append the text file "savedData.txt."

I know this code is very very dirty. I'm new to Java so any other suggestions would be greatly appreciated.

package com.buttinyourface; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.OutputStreamWriter; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date;  import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.TimePickerDialog; import android.content.Context; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.TextView; import android.widget.TimePicker; import android.widget.AdapterView.OnItemClickListener;  public class SettingsActivity extends Activity {      public int wakeHour;     public int wakeMinute;     public int sleepHour;     public int sleepMinute;     public String sleepHourText = "No Data";     public String sleepMinuteText = "No Data";     public String outputTime = "No Data";     public String wakeHourText = "No Data";     private ListView lv;     Dialog newDialogBox;     Context appContext;     protected Context context;     static final private int WAKE_TIME = 0;     static final private int SLEEP_TIME = 1;      public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.settings);         final String[] settingsList = getResources().getStringArray(                 R.array.settingsStringArray);         lv = (ListView) findViewById(R.id.list);         TextView wakeHourTextView = (TextView) findViewById(R.id.TextView01);         lv.setOnItemClickListener(new OnItemClickListener() {              public void onItemClick(AdapterView<?> parent, View view,                     int position, long id) {                 int settingsPosition = position;                 if (settingsPosition == 0) {                     showDialog(WAKE_TIME);                     wakeHourText = Integer.toString(wakeHour);                 }                 if (settingsPosition == 1) {                     showDialog(SLEEP_TIME);                 }             }         });         lv.setAdapter(new ArrayAdapter<String>(this,                 android.R.layout.simple_list_item_1, settingsList));         wakeHourTextView.setText(outputTime);     }      public void onPrepareDialog(int id, Dialog dialog) {         switch (id) {         case WAKE_TIME:             break;         case SLEEP_TIME:             break;         }     }      @Override     public Dialog onCreateDialog(int id) {         switch (id) {         case WAKE_TIME:             return new TimePickerDialog(this, WakeTimeSetListener, wakeHour,                     wakeMinute, false);         case SLEEP_TIME:             return new TimePickerDialog(this, SleepTimeSetListener, sleepHour,                     sleepMinute, false);         }         return null;     }      private TimePickerDialog.OnTimeSetListener WakeTimeSetListener =                           new TimePickerDialog.OnTimeSetListener() {         public void onTimeSet(TimePicker view, int hourOfDay, int minute) {             wakeHour = hourOfDay;             wakeMinute = minute;             String wakeHourText = Integer.toString(hourOfDay);             String wakeMinuteText = Integer.toString(minute);             String preftime = hourOfDay + ":" + minute;             SimpleDateFormat df = new SimpleDateFormat("HH:mm");             SimpleDateFormat dfOut = new SimpleDateFormat("hh:mma");             Date date = null;             try {                 date = df.parse(preftime);             } catch (ParseException e1) {                 // TODO Auto-generated catch block                 e1.printStackTrace();             }             String outputWakeTime = dfOut.format(date);             try {                 commitToFile(wakeHourText, wakeMinuteText, outputWakeTime);             } catch (IOException e) {                 // TODO Auto-generated catch block                 e.printStackTrace();             }         }     };     private TimePickerDialog.OnTimeSetListener SleepTimeSetListener =                           new TimePickerDialog.OnTimeSetListener() {         public void onTimeSet(TimePicker view, int hourOfDay, int minute) {             sleepHour = hourOfDay;             sleepMinute = minute;             String sleepHourText = Integer.toString(hourOfDay);             String sleepMinuteText = Integer.toString(minute);             String preftime = hourOfDay + ":" + minute;             SimpleDateFormat df = new SimpleDateFormat("HH:mm");             SimpleDateFormat dfOut = new SimpleDateFormat("hh:mma");             Date date = null;             try {                 date = df.parse(preftime);             } catch (ParseException e1) {                 // TODO Auto-generated catch block                 e1.printStackTrace();             }             String sleepOutputTime = dfOut.format(date);             try {                 commitToFile2(sleepHourText, sleepMinuteText, sleepOutputTime);             } catch (IOException e) {                 // TODO Auto-generated catch block                 e.printStackTrace();             }         }     };      private void commitToFile(String wakeHourText, String wakeMinuteText,             String outputWakeTime) throws IOException {         final String entryString = new String("wakeHour=" + wakeHourText                 + ";wakeMinute=" + wakeMinuteText + ";wakeTime="                 + outputWakeTime + ";");         FileOutputStream fOut = openFileOutput("savedData.txt",                 MODE_WORLD_READABLE);         OutputStreamWriter osw = new OutputStreamWriter(fOut);         osw.write(entryString);         osw.flush();         osw.close();     }      private void commitToFile2(String sleepHourText, String sleepMinuteText,             String sleepOutputTime) throws IOException {         final String entryString = new String("sleepHour=" + sleepHourText                 + ";sleepMinute=" + sleepMinuteText + ";sleepTime="                 + sleepOutputTime + ";");         FileOutputStream fOut = openFileOutput("savedData.txt",                 MODE_WORLD_READABLE);         OutputStreamWriter osw = new OutputStreamWriter(fOut);         osw.write(entryString);         osw.flush();         osw.close();     } } 

Answer 1

I figured it out....I had to change the line

FileOutputStream fOut = openFileOutput("savedData.txt", MODE_WORLD_READABLE); 

to

FileOutputStream fOut = openFileOutput("savedData.txt",  MODE_APPEND); 

After that I was able to append the text file without overwriting the data that was already inside the text file. Thanks for your assistance guys. I guess going to the 4th page on google IS useful sometimes.