I’m a beginner. I am writing one Android studio (Koala) application a simple messenger, and I need to be able to select an image from the gallery and open it in my application and open camera for make a photo (example to send it). Thank`s

i`ve tried search how open camera, but when i write code and debug app, i get mistake

package com.task;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import java.util.Objects;

public class MainActivity extends AppCompatActivity {

    private final ImageView image = findViewById(R.id.cameraImage);


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        @SuppressLint("WrongViewCast") Button cam = findViewById(R.id.camera);
        cam.setOnClickListener(this::onClick);

    }

    public void onClickHistory(View view){
        startActivity(new Intent(MainActivity.this, ActivityHistory.class));
    }
    public void onClickExplorer(View view){
        // TODO:
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Bitmap bitmap = null;
        if (data != null) {
            bitmap = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");
        }
        image.setImageBitmap(bitmap);
    }

    private void onClick(View view) {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        startActivity(intent);
    }
}