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.  .......
}