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Android Build a Simple Android App with Java Basic Android Programming Initializing a Button

Vygandas Razhas
Vygandas Razhas
Courses Plus Student 2,422 Points

I've compared this syntax with atleast 4 different answered questions and I can't seem to find what's wrong with this.

How do I properly initialize my showFactButton? What is the purpose of the findViewById?

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class FunFactsActivity extends Activity {

    public void onCreate(Bundle savedInstanceState) {

        // Declare our View variables and assign them the Views from the layout file
        TextView factLabel = (TextView) findViewById(R.id.factTextView);
        Button showFactButton = (Button) findViewById(R.id.showFactButton; 

1 Answer

Hi there,

You haven't closed the bracket after R.id.showFactButton.

I'll check the rest of your code and comment under here in a minute.


Yep - clicking the Preview button with your code gives you:

./FunFactsActivity.java:16: error: ')' expected
        Button showFactButton = (Button) findViewById(R.id.showFactButton;
1 error

Adding that bracket and it works fine.

Button showFactButton = (Button) findViewById(R.id.showFactButton);
Vygandas Razhas
Vygandas Razhas
Courses Plus Student 2,422 Points

Thank you Steve! Can't wait to get better at coding!

I know that feeling well!