Android for Beginners : Menu Solution Code

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/menu_item_1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Mango sorbet"
        android:textAppearance="?android:textAppearanceMedium" />

    <TextView
        android:id="@+id/menu_item_2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:text="Blueberry pie"
        android:textAppearance="?android:textAppearanceMedium"
        android:textSize="18sp" />

    <TextView
        android:id="@+id/menu_item_3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:text="Chocolate lava cake"
        android:textAppearance="?android:textAppearanceMedium"
        android:textSize="18sp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:onClick="printToLogs"
        android:text="Print menu to logs" />
</LinearLayout>

MainActivity.java

package com.example.android.menu;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.TextView;


public class MainActivity extends AppCompatActivity {

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

    public void printToLogs(View view) {
        // Find first menu item TextView and print the text to the logs
        TextView textViewItem1 = (TextView) findViewById(R.id.menu_item_1);
        String menuItem1 = textViewItem1.getText().toString();
        Log.v("MainActivity", menuItem1);

        // Find second menu item TextView and print the text to the logs
        TextView textViewItem2 = (TextView) findViewById(R.id.menu_item_2);
        String menuItem2 = textViewItem2.getText().toString();
        Log.v("MainActivity", menuItem2);

        // Find third menu item TextView and print the text to the logs
        TextView textViewItem3 = (TextView) findViewById(R.id.menu_item_3);
        String menuItem3 = textViewItem3.getText().toString();
        Log.v("MainActivity", menuItem3);
    }
}

The final answer given at the top didn't work with my Android version.I guess it is because the code comes from 2015?
So I made some minor adjustment and now it works perfectly and it looks like this:

For the XML file it is:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"

tools:context=".MainActivity">

<TextView
    android:id="@+id/menu_item_1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Mango sorbet"
    android:textAppearance="?android:textAppearanceMedium" />

<TextView
    android:id="@+id/menu_item_2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:text="Anna Sun"
    android:textAppearance="?android:textAppearanceMedium"
    android:textSize="18sp" />

<TextView
    android:id="@+id/menu_item_3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:text="Chocolate lava cake"
    android:textAppearance="?android:textAppearanceMedium"
    android:textSize="18sp" />

For the Java file:
package com.example.android.menu;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}
public void printToLogs(View view) {
    // Find first menu item TextView and print the text to the logs
    TextView textViewItem1 = (TextView) findViewById(R.id.menu_item_1);
    String menuItem1 = textViewItem1.getText().toString();
    Log.v("MainActivity", menuItem1);

    // Find second menu item TextView and print the text to the logs
    TextView textViewItem2 = (TextView) findViewById(R.id.menu_item_2);
    String menuItem2 = textViewItem2.getText().toString();
    Log.v("MainActivity", menuItem2);

    // Find third menu item TextView and print the text to the logs
    TextView textViewItem3 = (TextView) findViewById(R.id.menu_item_3);
    String menuItem3 = textViewItem3.getText().toString();
    Log.v("MainActivity", menuItem3);
}

}

java code
package com.example.android.newproject;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}
public void printToLogs(View view) {
    // Find first menu item TextView and print the text to the logs
    TextView textViewItem1 = (TextView) findViewById(R.id.lee);
    String menuItem1 = textViewItem1.getText().toString();
    Log.v("MainActivity", menuItem1);

    // Find second menu item TextView and print the text to the logs
    TextView textViewItem2 = (TextView) findViewById(R.id.Jax);
    String menuItem2 = textViewItem2.getText().toString();
    Log.v("MainActivity", menuItem2);

    // Find third menu item TextView and print the text to the logs
    TextView textViewItem3 = (TextView) findViewById(R.id.yi);
    String menuItem3 = textViewItem3.getText().toString();
    Log.v("MainActivity", menuItem3);
}

}
xml

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/cardview_light_background"
tools:context=".MainActivity">

    <TextView
        android:id="@+id/lee"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@color/white"
        android:text="LeeSin"
        android:textColor="@color/black"
        android:textSize="50sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.061"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.024" />

    <TextView
        android:id="@+id/Jax"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@color/cardview_light_background"
        android:text="Jax"
        android:textColor="@color/black"
        android:textSize="50sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.048"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.319" />

    <TextView
        android:id="@+id/yi"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@color/cardview_light_background"
        android:text="master yi"
        android:textColor="@color/black"
        android:textSize="50sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.077"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.17" />

    <Button
        android:id="@+id/button"
        android:layout_width="136dp"
        android:layout_height="66dp"
        android:text="Print MTL"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.941"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.451" />

</androidx.constraintlayout.widget.ConstraintLayout>
it give nothing

i was here

guys it doesn not poo up anything