Add TextView and EditText in activity_main.xml

Open the res/layout/activity_main.xml file and replace the content with:

package com.example.myfirstapp;

import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    TextView textView;
    EditText editText;

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

        textView = findViewById(R.id.textView);
        editText = findViewById(R.id.editText);

        // Example: You can access or set text like this
        String userInput = editText.getText().toString();
        textView.setText("Hello, " + userInput);
    }
}

Note: To respond to user input dynamically, consider using a Button and adding a setOnClickListener.

Conclusion

Now you’ve successfully added and connected a TextView and an EditText in Java using Android Studio. This is the foundation of many input-related user interfaces in Android development.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Enter your name:"
        android:textSize="18sp" />

    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Type here"
        android:inputType="textPersonName"
        android:marginTop="12dp"/>
</LinearLayout>

Access TextView and EditText in Java File

Open MainActivity.java and modify as follows:

package com.example.myfirstapp;

import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    TextView textView;
    EditText editText;

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

        textView = findViewById(R.id.textView);
        editText = findViewById(R.id.editText);

        // Example: You can access or set text like this
        String userInput = editText.getText().toString();
        textView.setText("Hello, " + userInput);
    }
}

Note: To respond to user input dynamically, consider using a Button and adding a setOnClickListener.

Conclusion

Now you’ve successfully added and connected a TextView and an EditText in Java using Android Studio. This is the foundation of many input-related user interfaces in Android development.