import android.annotation.SuppressLint;

import android.os$.$Bundle;

import android.view.View;

import android.widget.ProgressBar;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.TextView;

import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class mcqs extends AppCompatActivity $\{$

private TextView questionText;

private RadioGroup optionsGroup;

private TextView progressText;

private ProgressBar progressBar;

private String$[]$ questions;

private String$[][]$ options;

private int$[]$ correctAnswers;

private int currentQuestionIndex $=1$;

private int score $=0$;

@SuppressLint$("$MissingInflatedId$")$

@Override

protected void onCreate$($Bundle savedInstanceState$)\{$

super.onCreate$($savedInstanceState$)$;

setContentView$($R$.$layout.activity$\_$mcqs$)$;

questionText $=$ findViewById$($R$.$id$.$questionText$)$;

optionsGroup $=$ findViewById$($R$.$id$.$optionsGroup$)$;

progressText $=$ findViewById$($R$.$id$.$progress$\_$text$)$;

progressBar $=$ findViewById$($R$.$id$.$progress$\_$bar$)$;

$//$ Initialize questions, options, and correct answers

questions $=$ getResources$().$getStringArray$($R$.$array.questions$\_$mcqs$)$;

options $=$ new String$[][]\{$

getResources$().$getStringArray$($R$.$array.options$\_1),$

getResources$().$getStringArray$($R$.$array.options$\_2),$

getResources$().$getStringArray$($R$.$array.options$\_3),$

getResources$().$getStringArray$($R$.$array.options$\_4),$

getResources$().$getStringArray$($R$.$array.options$\_5),$

getResources$().$getStringArray$($R$.$array.options$\_6),$

getResources$().$getStringArray$($R$.$array.options$\_7),$

getResources$().$getStringArray$($R$.$array.options$\_8),$

getResources$().$getStringArray$($R$.$array.options$\_9),$

getResources$().$getStringArray$($R$.$array.options$\_10)$

$//$ Add more options arrays as needed

$\}$;

correctAnswers $=$ new int$[]\{0,0,0,0,0,0,0,0,0,0\}$; $//$ Adjust correct answers based on your quiz logic

loadQuestion$()$;

optionsGroup.setOnCheckedChangeListener$(($group$,$ checkedId$)->\{$

RadioButton selectedRadioButton $=$ findViewById$($checkedId$)$;

int selectedAnswerIndex $=$ optionsGroup.indexOfChild$($selectedRadioButton$)$;

$//$ Check if the selected answer is correct

if $($selectedAnswerIndex $==$ correctAnswers$[$currentQuestionIndex$])\{$

score$++$;

Toast.makeText$($this$,$ "Correct!", Toast.LENGTH$\_$SHORT$).$show$()$;

$\}$ else $\{$

Toast.makeText$($this$,$ "Incorrect!", Toast.LENGTH$\_$SHORT$).$show$()$;

$\}$

currentQuestionIndex$++$;

if $($currentQuestionIndex $<$ questions.length$)\{$

loadQuestion$()$;

$\}$ else $\{$

$//$ End of quiz

questionText.setText$("$Quiz Completed! Your score: $"+$ score $+"/"+$ questions.length$)$;

optionsGroup.setVisibility$($View$.$GONE$)$;

$\}$

$\})$;

$\}$

private void loadQuestion$()\{$

questionText.setText$($questions$[$currentQuestionIndex$])$;

$(($RadioButton$)$ optionsGroup.getChildAt$(0)).$setText$($options$[$currentQuestionIndex$][0])$;

$(($RadioButton$)$ optionsGroup.getChildAt$(1)).$setText$($options$[$currentQuestionIndex$][1])$;

$(($RadioButton$)$ optionsGroup.getChildAt$(2)).$setText$($options$[$currentQuestionIndex$][2])$;

$(($RadioButton$)$ optionsGroup.getChildAt$(3)).$setText$($options$[$currentQuestionIndex$][3])$;

progressText.setText$(($currentQuestionIndex $+1)+"/"+$ questions.length$)$;

progressBar.setProgress$($currentQuestionIndex $+10)$;

optionsGroup.clearCheck$()$;

$\}$

$\}$

I dont know why but in my string files there are $10$ qutions but the quizz ends after the first question