Statistics usability of mobile phones with Android - September 2011

private int _nVersionCode = 0;	
private boolean _bNewVersion = false;


// onCreate
     	 _nVersionCode   = this.getPackageManager()
     	.getPackageInfo(this.getPackageName(), 0).versionCode;
     	Log.d(String.valueOf(_nVersionCode), "versionCode");

// onStart loadPreferences
 public void loadPreferences() {
			//SharedPreferences settings = getSharedPreferences(F.PREFERENCES_NAME, 0);
			SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
		int nOldVersionCode =	settings.getInt("_nVersionCode",  0);// old vesion
		if(_nVersionCode > nOldVersionCode)
			_bNewVersion = true;
	}

// onDestroy savePreferences	
	public void savePreferences() {
			SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
			SharedPreferences.Editor editor = settings.edit();
			editor.putInt("_nVersionCode", _nVersionCode); // save current version code
			editor.commit();
	}

if( true and true and true){ 
  // return true - do something
}
int a = 6;
if(a == 6 && a == 6 ) {
 // if TRUE
 // true && true return true, do something
}

if(a == 6 && a == 5){
  // nothing, not attended
}else{
  // true && false return false, or false && false return false 
  // do something
}

if(FALSE OR FALSE OR TRUE) return TRUE
if(FALSE OR TRUE OR FALSE) return TRUE
if(FALSE OR FALSE OR FALSE) return FALSE

int a = 6;
if(a==6 || a==5){ // TRUE || FALSE return TRUE
  //if return TRUE
  //one from operadns is TRUE return true,  do something
}

if(a==5 || a==4){ // FALSE || FALSE return FALSE
 // not attended
}else{
 //if return FALSE, do something
}

private int[] mData = new int[2]; // fill some values into array!!
 @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putBoolean("myBoolean", true);
        outState.putDouble("myDouble", 2.7);
        outState.putInt("myInt", 5);
        outState.putString("myString", "Heloo girls!");
       int[] data = new int[mData.length];
        for (int i = 0; i < data.length; i++) {
            data[i] = mData[i];
        }
        outState.putIntArray("myArray", data);

    }
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
  super.onRestoreInstanceState(savedInstanceState);
  boolean myBoolean = savedInstanceState.getBoolean("myBoolean", false); // false basic value
  double myDouble = savedInstanceState.getDouble("myDouble", 1.5); // 1.5 basic value
  int myInt = savedInstanceState.getInt("myInt", 10);
  String myString = savedInstanceState.getString("myString", "Hello boys!");
  int[] data = savedInstanceState.getIntArray("myArray");
  
  if (data != null && data.length == mData.length) {
            for (int i = 0; i < data.length; i++) {
                mData[i] = data[i];
            }
        }
}
@Override
public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  boolean myBoolean =  savedInstanceState != null ? savedInstanceState.getBoolean("myBoolean", false) : true;
// etc.  .......
}