How to fix the program execution logic?

Question

Java

Hello! Please help me figure it out...
I'm writing a Java testing program for myself. In the test, it is necessary to implement the function of several correct answers (checkboxes). However, something is always wrong. Now, for example, when checking, all answer options are immediately counted as correct (checkBox1Status = true;).

public void onClick(View v) {

        switch (v.getId())
        {
            case R.id.checkBox:
                if (checkBox1.isChecked() == true && (checkBox1.getText().equals(writeAnswer1) ||
                        checkBox1.getText().equals(writeAnswer2) ||
                        checkBox1.getText().equals(writeAnswer3) ||
                        checkBox1.getText().equals(writeAnswer4)))

            {
                    checkBox1Status = true;
                }
                else if((checkBox1.isChecked() == false && !checkBox1.getText().equals(writeAnswer1)) ||
                        (checkBox1.isChecked() == false && !checkBox1.getText().equals(writeAnswer2)) ||
                        (checkBox1.isChecked() == false && !checkBox1.getText().equals(writeAnswer3)) ||
                        (checkBox1.isChecked() == false && !checkBox1.getText().equals(writeAnswer4))
                        )

                {
                    checkBox1Status = true;
                }
                else if((checkBox1.isChecked() == true && !checkBox1.getText().equals(writeAnswer1)) ||
                        (checkBox1.isChecked() == true && !checkBox1.getText().equals(writeAnswer2)) ||
                        (checkBox1.isChecked() == true && !checkBox1.getText().equals(writeAnswer3)) ||
                        (checkBox1.isChecked() == true && !checkBox1.getText().equals(writeAnswer4))
                        )

                {
                    checkBox1Status = false;
                }
                else if((checkBox1.isChecked() == false && checkBox1.getText().equals(writeAnswer1)) ||
                        (checkBox1.isChecked() == false && checkBox1.getText().equals(writeAnswer2)) ||
                        (checkBox1.isChecked() == false && checkBox1.getText().equals(writeAnswer3)) ||
                        (checkBox1.isChecked() == false && checkBox1.getText().equals(writeAnswer4)))

                {
                    checkBox1Status = false;
                }


                if ((checkBox2.isChecked() == true && checkBox2.getText().equals(writeAnswer1)) ||
                        (checkBox2.isChecked() == true && checkBox2.getText().equals(writeAnswer2)) ||
                        (checkBox2.isChecked() == true && checkBox2.getText().equals(writeAnswer3)) ||
                        (checkBox2.isChecked() == true && checkBox2.getText().equals(writeAnswer4))
                        )

                {
                    checkBox2Status = true;
                }
                else if((checkBox2.isChecked() == false && !checkBox2.getText().equals(writeAnswer1)) ||
                        (checkBox2.isChecked() == false && !checkBox2.getText().equals(writeAnswer2)) ||
                        (checkBox2.isChecked() == false && !checkBox2.getText().equals(writeAnswer3)) ||
                        (checkBox2.isChecked() == false && !checkBox2.getText().equals(writeAnswer4))
                        )

                {
                    checkBox2Status = true;
                }
                else if((checkBox2.isChecked() == true && !checkBox2.getText().equals(writeAnswer1)) ||
                        (checkBox2.isChecked() == true && !checkBox2.getText().equals(writeAnswer2)) ||
                        (checkBox2.isChecked() == true && !checkBox2.getText().equals(writeAnswer3)) ||
                        (checkBox2.isChecked() == true && !checkBox2.getText().equals(writeAnswer4))
                        )

                {
                    checkBox2Status = false;
                }
                else if((checkBox2.isChecked() == false && checkBox2.getText().equals(writeAnswer1)) ||
                        (checkBox2.isChecked() == false && checkBox2.getText().equals(writeAnswer2)) ||
                        (checkBox2.isChecked() == false && checkBox2.getText().equals(writeAnswer3)) ||
                        (checkBox2.isChecked() == false && checkBox2.getText().equals(writeAnswer4)))

                {
                    checkBox2Status = false;
                }
                if ((checkBox3.isChecked() == true && checkBox3.getText().equals(writeAnswer1)) ||
                        (checkBox3.isChecked() == true && checkBox3.getText().equals(writeAnswer2)) ||
                        (checkBox3.isChecked() == true && checkBox3.getText().equals(writeAnswer3)) ||
                        (checkBox3.isChecked() == true && checkBox3.getText().equals(writeAnswer4))
                        )

                {
                    checkBox3Status = true;
                }
                else if((checkBox3.isChecked() == false && !checkBox3.getText().equals(writeAnswer1)) ||
                        (checkBox3.isChecked() == false && !checkBox3.getText().equals(writeAnswer2)) ||
                        (checkBox3.isChecked() == false && !checkBox3.getText().equals(writeAnswer3)) ||
                        (checkBox3.isChecked() == false && !checkBox3.getText().equals(writeAnswer4))
                        )

                {
                    checkBox3Status = true;
                }
                else if((checkBox3.isChecked() == true && !checkBox3.getText().equals(writeAnswer1)) ||
                        (checkBox3.isChecked() == true && !checkBox3.getText().equals(writeAnswer2)) ||
                        (checkBox3.isChecked() == true && !checkBox3.getText().equals(writeAnswer3)) ||
                        (checkBox3.isChecked() == true && !checkBox3.getText().equals(writeAnswer4))
                        )

                {
                    checkBox3Status = false;
                }
                else if((checkBox3.isChecked() == false && checkBox3.getText().equals(writeAnswer1)) ||
                        (checkBox3.isChecked() == false && checkBox3.getText().equals(writeAnswer2)) ||
                        (checkBox3.isChecked() == false && checkBox3.getText().equals(writeAnswer3)) ||
                        (checkBox3.isChecked() == false && checkBox3.getText().equals(writeAnswer4)))

                {
                    checkBox3Status = false;
                }

                if ((checkBox4.isChecked() == true && checkBox4.getText().equals(writeAnswer1)) ||
                        (checkBox4.isChecked() == true && checkBox4.getText().equals(writeAnswer2)) ||
                        (checkBox4.isChecked() == true && checkBox4.getText().equals(writeAnswer3)) ||
                        (checkBox4.isChecked() == true && checkBox4.getText().equals(writeAnswer4))
                        )

                {
                    checkBox4Status = true;
                }

                else if((checkBox4.isChecked() == false && !checkBox4.getText().equals(writeAnswer1)) ||
                        (checkBox4.isChecked() == false && !checkBox4.getText().equals(writeAnswer2)) ||
                        (checkBox4.isChecked() == false && !checkBox4.getText().equals(writeAnswer3)) ||
                        (checkBox4.isChecked() == false && !checkBox4.getText().equals(writeAnswer4))
                        )

                {
                    checkBox4Status = true;
                }
                else if((checkBox4.isChecked() == true && !checkBox4.getText().equals(writeAnswer1)) ||
                        (checkBox4.isChecked() == true && !checkBox4.getText().equals(writeAnswer2)) ||
                        (checkBox4.isChecked() == true && !checkBox4.getText().equals(writeAnswer3)) ||
                        (checkBox4.isChecked() == true && !checkBox4.getText().equals(writeAnswer4))
                        )

                {
                    checkBox4Status = false;
                }
                else if((checkBox4.isChecked() == false && checkBox4.getText().equals(writeAnswer1)) ||
                        (checkBox4.isChecked() == false && checkBox4.getText().equals(writeAnswer2)) ||
                        (checkBox4.isChecked() == false && checkBox4.getText().equals(writeAnswer3)) ||
                        (checkBox4.isChecked() == false && checkBox4.getText().equals(writeAnswer4)))

                {
                    checkBox4Status = false;
                }

                if (checkBox1Status==true && checkBox2Status==true && checkBox3Status==true && checkBox4Status==true)
                {
                    Toast toast1 = Toast.makeText(getApplicationContext(),
                            "Верно!", Toast.LENGTH_SHORT);
                    toast1.show();

                    Intent intent = new Intent(MultyChoise.this, MainActivity.class);
                    startActivity(intent);
                }

                break;

Tell me, please, what's wrong?

Answer 1

Because the code, that is, the code is too long, complex and therefore unreadable, at least, they could &&use nested ones instead if:

if (checkBox1.isChecked() == true) {
  if (...) {
    ...
  }
}

Otherwise, you generally double-check one CheckBox, whether it is true or false.
Although, some are already managed and everything works correctly for them, here is one of them , learn!

Answer 2

There is a good example of your task in this book
https://www.dropbox.com/s/a45l6lsrepz5b5v/%D0%A5%D...