How to Print "Hello World" on Android

Welcome to a simple tutorial on how to print "Hello World" on an Android device using Java.

Step 1: Create a New Project

1. Open Android Studio
2. Select New Project from the menu.
3. Choose "Empty Activity".
4. Name your project HelloWorldApp.

Step 2: Add a TextView to the Layout

1. In the XML layout file, add a TextView at the top.
2. Set its ID to @+id/hw_textview.
3. Set its text to Hello World.

Step 3: Write the Code

public class HelloWorldActivity extends AppCompatActivity {

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

        TextView hwTextView = findViewById(R.id.hw_textview);
        hwTextView.setText("Hello World");
    }
}
        

Step 4: Run the Application

• Connect your Android device to your computer.
• Click the play button (green arrow) to run the app.
• You should see "Hello World" displayed on the screen.

Note:

Additional Resources

• Android Developer Docs
• Android Tutorial