Counter starter

package com.example.counter;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {
    private int count = 0;

    @Override
    protected void onCreate(Bundle state) {
        super.onCreate(state);
        setContentView(R.layout.activity_main);
        if (state != null) count = state.getInt("count", 0);
        TextView label = findViewById(R.id.counter);
        Button button = findViewById(R.id.increment);
        label.setText(String.valueOf(count));
        button.setOnClickListener(view -> {
            count++;
            label.setText(String.valueOf(count));
        });
    }

    @Override
    protected void onSaveInstanceState(Bundle state) {
        state.putInt("count", count);
        super.onSaveInstanceState(state);
    }
}