Camera.open() 'open' keeps losing money

import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.camera2.CameraDevice;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.LinearLayout;

public class MainActivity extensions AppCompatActivity{

    private boolean checkCameraHardware (Context context) {
        if(context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA)){
            // This device has a camera
            return true;
        } else{
            // no camera on this device
            return false;
        }
    }

    public static CameraDevice getCametaInstance(){
        CameraDevice c=null;
        try{
            c=CameraDevice.open();//attempt to get a Camera instance
        }
        catch(Exceptione){
            // Camera is not available (in use or does not exist)
        }
        return c;// returns null if camera is unavailable
    }

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

}