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Android Build a Simple Android App (retired 2014) Getting Started with Android Java Variables Explained

Posted by Ayomi Meneko
Ayomi Meneko
176 Points

How can I solve this error answer.setText(answer);

Please how can I solve the error: answer.setText(answer); because it is not making my Crystal Ball emulator run.. I need help.

with an answer String answer = "Yes"; answer.setText(answer);
} }); }

@Override
public boolean onCreateOptionsMenu(Menu menu) {

    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

3 Answers

michaelpavle
michaelpavle
555 Points
michaelpavle
michaelpavle
555 Points

I think you need to add these lines of code: ***Java String answer = "";

            Random randomGenerator = new Random();
            int randomNumber = randomGenerator.nextInt(3);
            answer = Integer.toString(randomNumber);

            if (randomNumber == 0){
                answer = "Yes!";
            }
            else if (randomNumber == 1){
                answer = "No";
            }
            else if (randomNumber == 2){
                answer = "Maybe.";
            }
            else{
                answer = "Sorry, there has been an error.";
            }

            answerLabel.setText(answer);

        }
    });
}
Ayomi Meneko
Ayomi Meneko
176 Points

@michaelpavle Thanks for your help but this is the complete program but it is always showing there is error here : answerLabel.setText(answer); .. It shows red underline and I don't know how to fix it

package com.puritywordview.crystalgaze;

import android.os.Bundle; import android.support.v7.app.ActionBarActivity; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button;

public class MainActivity<TextView> extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Declare our View variables and assign them the views from the layout file
    final TextView answerLabel = (TextView) findViewById(R.id.textView1);
    Button getAnswerButton = null;

    getAnswerButton.setOnClickListener(new View.OnClickListener() {

        public void onClick(View arg0) {
            // The button was clicked, so update the answer label with an answer
            String answer = "Yes";
             answer.setText(answer);        
        }
    });
}


@Override
public boolean onCreateOptionsMenu(Menu menu) {

    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

}

Ayomi Meneko
Ayomi Meneko
176 Points
Ayomi Meneko
Ayomi Meneko
176 Points

I need help on it seriously

michaelpavle
michaelpavle
555 Points
michaelpavle
michaelpavle
555 Points

When I checked the code, you wrote answer.setText(answer); and not answerLabel.setText(answer);