MainActivity.java

package com.example.youdothemath;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;


public class MainActivity extends AppCompatActivity implements OnClickListener {

    private Button MathButton;
    private Button MazeButton;
    private TextView WelcomeText;
    private TextView Result1Text;
    private TextView Result2Text;
    private TextView MathText;
    private TextView MazeText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        MathButton = findViewById(R.id.math_icon);
        MazeButton = findViewById(R.id.maze_icon);
        WelcomeText = findViewById(R.id.welcome);
        Result1Text = findViewById(R.id.result1);
        Result2Text = findViewById(R.id.result2);
        MathText = findViewById(R.id.math_txt);
        MazeText = findViewById(R.id.maze_txt);
        MathButton.setOnClickListener(this);

        SharedPreferences scorePrefs = getSharedPreferences(PlayGame.GAME_PREFS, 0);
        String[] savedScores = scorePrefs.getString("highScores", "").split("\\|");
        String BestScore = savedScores[0];
        Result1Text.setText(BestScore);
    }

    public void onClick(View view) {
        if (view.getId() == R.id.math_icon) {
            Intent intent = new Intent(this, Menu.class);
            startActivity(intent);
        }
    }

}