I'm creating a bingo app in AndroidStudio using Java.
It is an application that keeps a numerical value selected at random in the bingo application in the log, but the reset button cannot be implemented.

The log value doesn't disappear and I don't get any response when I press the reset button. If i have any questions about this problem, please tell me.

* All source code below is attached.
package com.example.renwhite.mybingo;

import androidx.appcompat.app.AppCompatActivity;

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

import java.util.ArrayList;

import static com.example.renwhite.mybingo.R.id.ConstraintLayout;
import static com.example.renwhite.mybingo.R.id.current_number;
import static com.example.renwhite.mybingo.R.id.reset_max_number;

public class MainActivity extends AppCompatActivity {
// Maximum value
private int maxNumber = 75;
// Number history
private ArrayListhistory = new ArrayList<>();

// Maximum value field
private EditText maxNumberEditText;
// Maximum value setting button
private Button registerMaxNumberButton;
// button to get next number
private Button nextNumberButton;
// TextView to display the current number
private TextView currentNumberTextView;
// TextView to display history
private TextView historyTextView;
// Button to reset output log
private Button resetMaxNumber;

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

// Initialize view variables
maxNumberEditText = findViewById (R.id.max_number);
registerMaxNumberButton = findViewById (R.id.register_max_number);
nextNumberButton = findViewById (R.id.next_number);
currentNumberTextView = findViewById (R.id.current_number);
historyTextView = findViewById (R.id.history);
resetMaxNumber = findViewById (R.id.reset_max_number);

// Reset values ​​
final Button resetMaxNumber = findViewById (R.id.reset_max_number);
resetMaxNumber.setText ("Reset");
resetMaxNumber.setOnClickListener (new View. OnClickListener () {
@Override
public void onClick (View view) {
// Restore the output log to the initial value

Log.d ("MainActivity", "resetMaxNumber");

}
});

// Set the initial maximum value to EditText
maxNumberEditText.setText ("" + maxNumber);

// Update the maximum value
registerMaxNumberButton.setOnClickListener (new View.OnClickListener () {
@Override
public void onClick (View v) {
// take the input value as a string
String maxNumberString = maxNumberEditText.getText (). ToString ();
// Substitute after converting to int type
maxNumber = Integer.valueOf (maxNumberString);

Log.d ("MainActivity", "maxNumber:" + maxNumber);
}
});

// Update the displayed number
nextNumberButton.setOnClickListener (new View.OnClickListener () {
@Override
public void onClick (View v) {
onClickNextNumber ();
}
});
}

// What happens when nextNumberButton is tapped
private void onClickNextNumber () {
Log.d ("MainActivity", "onClickNextNumber");

// A random number considering maxNumber
int nextNumber = createRandomNumber ();// ①

// If the number is a duplicate, generate the number again
while (history.contains ("" + nextNumber)) (// ②
Log.d ("MainActivity", "Recreated because it was duplicated");
nextNumber = createRandomNumber ();// ③
}

// Convert nextNumber to string
String nextNumberStr = "" + nextNumber;// ④

// Display nextNumber on the screen
currentNumberTextView.setText (nextNumberStr);

// Leave history
history.add (nextNumberStr);

// Leave history
historyTextView.setText (history.toString ());

Log.d ("MainActivity", history.toString ());
}
// Generate a random number considering maxNumber
private int createRandomNumber () {
// Generate a numerical value between 0.0 and 74.0 (when the maximum value is the initial value)
double randomNumber = Math.random () * (maxNumber-1);
// Generate an integer value between 1 and 75 (when the maximum value is the initial value)
return (int) randomNumber + 1;

}

}

Error message

Reset button does not respond

Applicable source code

// Reset the number
        final Button resetMaxNumber = findViewById (R.id.reset_max_number);
        resetMaxNumber.setText ("Reset");
        resetMaxNumber.setOnClickListener (new View. OnClickListener () {
            @Override
            public void onClick (View view) {
                // Restore the output log to the initial value
                Log.d ("MainActivity", "resetMaxNumber");
            }
        });

The bingo app was created using a reference book. I tried the code from among the ones with a numeric reset button.

Supplemental information (FW/tool version etc.)

Usage environment:
Android Studio 3.5.1