title: Cannot count the correct answers for quiz app android using if statements
body: <p>Whenever I click on the button, it should change the score if the answer is correct. However, when i click on next, it does not change the score. it just shows its default which is 0. Everything is okay except for the score.</p>
  
  <pre><code> public class QuizActivity extends Activity {
      DBAdapter db = new DBAdapter(this);
      private TextView tvQuestion;
      private Cursor c;
      private Cursor cur;
      private RadioGroup radioGroup;
      private RadioButton rb0,rb1,rb2;
      private Button nextButton;
      private int i =1;
      private int questNo=0;
      private RadioButton radioButton;
      private int score=0;
      private String correctAnswer;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.quizactivity);
  
  
      displayQuestion();
      nextButton = (Button) findViewById(R.id.nextButton);
      nextButton.setOnClickListener(new OnClickListener() {
  
          public void onClick(View arg0) {
              getselectedAnswer();
              checkAnswer();
  
          if(i &lt; 10){
                  i=i+1;
  
  
                  radioGroup.clearCheck();
                  displayQuestion();
  
                  }else{
                  Intent i = new Intent(QuizActivity.this, Results.class);
                  startActivity(i);
                  }
          }
          });
  }
          public void checkAnswer() {
          Cursor mCursor = db.getCorrectAnswersforComparison(i);
          String correctAns = mCursor.getString(mCursor.getColumnIndex(DBAdapter.KEY_CORRECTANSWERS));
          if(getselectedAnswer()==correctAns){
              score = score+1;
  
          }else{
              score = score+0;
          }
  
          }
  
  private String getselectedAnswer() {    
      if (rb1.isChecked()){
          return rb1.getText().toString();
      }
      if (rb2.isChecked()){
          return rb2.getText().toString();
      }   
      if (rb0.isChecked()){
          return rb0.getText().toString();
      }
      else
          return null;
  
  
  }
  public void displayQuestion(){
      db.open();
      TextView scoretv = (TextView) findViewById(R.id.scoretv);
      scoretv.setText(""+score);
      c = db.getQuiz_Content(i);
      cur = db.getAnswers(i);
      tvQuestion = (TextView) findViewById(R.id.textViewQuestionQA);
      tvQuestion.setText(c.getString(0));
      radioGroup = (RadioGroup) findViewById(R.id.radioGroup);
      String correctAnswer = cur.getString(cur.getColumnIndex(DBAdapter.KEY_CORRECTANSWERS));
      String option1 = cur.getString(cur.getColumnIndex(DBAdapter.KEY_OPTION1));
      String option2 = cur.getString(cur.getColumnIndex(DBAdapter.KEY_OPTION2));
      rb0 = (RadioButton) findViewById(R.id.radio0);
      rb1 = (RadioButton) findViewById(R.id.radio1);
      rb2 = (RadioButton) findViewById(R.id.radio2);
      List&lt;String&gt; answers = new ArrayList&lt;String&gt;();
      answers.add(correctAnswer);
      answers.add(option1);
      answers.add(option2);
      Collections.shuffle(answers);
      rb0.setText(answers.get(0));
      rb1.setText(answers.get(1));
      rb2.setText(answers.get(2));
  
  }
  }
  </code></pre>