Building a Multiple Choice Quiz

Overview:

There will be one player.
The game will have some questions.
Four options for each question to choose from.
Each correct answer earns a point, whereas incorrect answers just don’t count.

Welcome Panel:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	class welcomePage extends JPanel {

	JButton play ,
	howItWorks ,
	about ,
	exit ;

	static boolean go = false ;

	welcomePage(JFrame window) {

	setSize(window.getSize().width,window.getSize().height);
	setLayout(null);
	setBackground(Color.DARK_GRAY);
	window.setContentPane(this);

	play = new JButton ("Play");
	play.setBackground(new Color(255,255,255)) ;
	play.setBounds(300,50,200,50);
	add(play);

	howItWorks = new JButton ("How It Works");
	howItWorks.setBackground(new Color(255,255,255)) ;
	howItWorks.setBounds(300,150,200,50);
	add(howItWorks);

	about = new JButton ("About");
	about.setBackground(new Color(255,255,255)) ;
	about.setBounds(300,250,200,50);
	add(about);

	exit = new JButton ("Exit");
	exit.setBackground(new Color(255,255,255)) ;
	exit.setBounds(300,350,200,50);
	add(exit);

	window.setVisible(true);

	}

	void choose (int time) {

	play.addActionListener((ActionEvent e) -> {
	go = true ;
	setVisible(false);
	});

	howItWorks.addActionListener((ActionEvent e) -> {
	new how(time);
	});

	about.addActionListener((ActionEvent e) -> {
	new about () ;
	});

	exit.addActionListener((ActionEvent e) -> {
	System.exit(0);
	});

	while (!go) {
	try {
	Thread.sleep(0);
	} catch (InterruptedException ex) {}
	}

	go = false ;

	}

	}

view raw welcomePage.java hosted with ❤ by GitHub

Preview:

How it works window:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	class how extends JFrame{
	how (int time) {
	setSize(400,400);
	setLocationRelativeTo(null);
	setResizable(false);
	JPanel pan = new JPanel () ;
	pan.setSize(this.getSize().width,this.getSize().height);
	pan.setBackground(Color.DARK_GRAY);
	pan.setLayout(null);
	setContentPane(pan);
	JLabel howLabel = new JLabel("<html><center>You Have "+ time/60+" min "+time%60 +" s To Answer 10 Different Questions"
	+ " And You Can Use The Helping Tools Such As 50:50 To remove two options "
	+ "Or The Hint To give You A Little Clue About The Answer.</center></html>");
	howLabel.setFont(new Font("Verdana", Font.BOLD, 15));
	howLabel.setBounds(8,5,350,150);
	howLabel.setForeground(Color.white);
	JLabel border = new JLabel() ;
	border.setBorder(new LineBorder(Color.white, 2, true));
	border.setBounds(10,5,365,350);
	JLabel img = new JLabel(new ImageIcon(getClass().getResource("how it works.jpg")));
	img.setBounds(8,160,350,150);
	border.add(howLabel);
	border.add(img);
	pan.add(border);
	setVisible(true);
	}
	}

view raw howItWorks.java hosted with ❤ by GitHub

Preview:

"About" window:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	class about extends JFrame{
	about () {
	setSize(400,400);
	setResizable(false);
	setLocationRelativeTo(null);
	JPanel pan = new JPanel () ;
	pan.setSize(this.getSize().width,this.getSize().height);
	pan.setBackground(Color.DARK_GRAY);
	pan.setLayout(null);
	setContentPane(pan);
	JLabel border = new JLabel() ;
	border.setBorder(new LineBorder(Color.white, 2, true));
	border.setBounds(10,5,370,350);
	pan.add(border);
	JLabel me =new JLabel (new ImageIcon(getClass().getResource("me.png")));
	JLabel myName =new JLabel ("<html><center>Mendja Wadie<center></html>") ;
	JLabel copyright = new JLabel ("<html><center>Copyright © 2020 Mendja Wadie TP GL ,Inc. All rights reserved"
	+ ".<center></html>");
	JLabel contact = new JLabel ("<html>"
	+ "Product Version: Quiz Game 1.0.0<br/>"+
	"Updates : <a href='' style='color:white;'> Check for update</a><br/>" +
	"Contact : mendja2014@gamil.com<br/>"+
	"GitHub : <a href=''>https://github.com/wadiemendja</a>"
	+ "</html>");
	copyright.setBounds(85,290,200,30);
	copyright.setForeground(Color.white);
	border.add(copyright);
	contact.setBounds(80,140,250,150);
	contact.setForeground(Color.white);
	border.add(contact);
	myName.setBounds(0,110,80,20);
	myName.setFont(new Font("Verdana", Font.BOLD, 10));
	myName.setForeground(Color.white);
	me.setBounds(140,10,80,130);
	me.add(myName);
	JSeparator sep = new JSeparator();
	JSeparator sep2 = new JSeparator();
	sep.setBounds(30,150,300,5);
	sep2.setBounds(55,275,250,5);
	border.add(sep);
	border.add(sep2);
	border.add(me);
	setVisible(true);
	}
	}

view raw about.java hosted with ❤ by GitHub

Preview:

we're going to use quiz2 class to create Questions, answers hints in an objects:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	class quiz2 {

	String question ,
	op1 ,
	op2 ,
	op3 ,
	op4 ,
	correct_answer ,
	hint;

	quiz2 (String question , String op1 , String op2 ,String op3, String op4 , String corrAns , String hint) {
	this.question = question ;
	this.op1 = op1;
	this.op2 = op2;
	this.op3 = op3 ;
	this.op4 = op4 ;
	this.correct_answer = corrAns ;
	this.hint = hint ;
	}
	}

view raw quiz2.java hosted with ❤ by GitHub

The Quiz game interface:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	class questions extends JPanel {

	JLabel Q ,
	hintLabel;

	JButton option1 ,
	option2,
	option3,
	option4 ;

	String correct_answer,
	hint ;

	static boolean next = false ;
	static int score = 0 ;

	static JLabel timer = new JLabel ("00 : 00 : 000") ;
	static counter count = new counter ();

	questions (quiz2 obj , JFrame window) {

	Q = new JLabel (obj.question);
	hintLabel = new JLabel("Hint");
	option1 = new JButton (obj.op1) ;
	option2 = new JButton (obj.op2) ;
	option3 = new JButton (obj.op3) ;
	option4 = new JButton (obj.op4) ;
	correct_answer = obj.correct_answer ;
	hint = obj.hint ;

	JPanel pan = new JPanel () ;
	pan.setLayout(null);
	pan.setBorder(BorderFactory.createLineBorder(Color.gray));
	pan.setBackground(Color.DARK_GRAY);
	window.setContentPane(pan);
	setLayout(null);
	setBackground(Color.getHSBColor(154, 254, 25));
	setBounds(90,170,600,200);
	setBorder(BorderFactory.createLineBorder(Color.black));
	pan.add(this);

	add(Q); add(option1); add(option2); add(option3); add(option4);

	Q.setBounds(110,8,400,50);
	Q.setBorder(new LineBorder(Color.blue, 2, true));
	Q.setHorizontalAlignment(JLabel.CENTER);
	option1.setBounds(90,70,200,40); option1.setBackground(new Color(255,255,255)) ;
	option2.setBounds(90,140,200,40); option2.setBackground(new Color(255,255,255)) ;
	option3.setBounds(330,70,200,40); option3.setBackground(new Color(255,255,255)) ;
	option4.setBounds(330,140,200,40); option4.setBackground(new Color(255,255,255)) ;
	option1.setBorder(new SoftBevelBorder(SoftBevelBorder.RAISED));
	option2.setBorder(new SoftBevelBorder(SoftBevelBorder.RAISED));
	option3.setBorder(new SoftBevelBorder(SoftBevelBorder.RAISED));
	option4.setBorder(new SoftBevelBorder(SoftBevelBorder.RAISED));

	timer.setBounds(250,400,300,50);
	timer.setFont(new Font("Verdana", Font.BOLD, 40));
	timer.setHorizontalAlignment(JLabel.CENTER);
	timer.setBorder(BorderFactory.createLineBorder(Color.white));
	timer.setForeground(Color.white);
	pan.add(timer);

	JButton hintBTN = new JButton(new ImageIcon(getClass().getResource("hint.png")));
	JButton half = new JButton(new ImageIcon(getClass().getResource("50 50.png")));

	pan.add(half); pan.add(hintBTN); pan.add(hintLabel);
	hintBTN.setBounds(200,50,80,80);
	hintBTN.setBorder(new SoftBevelBorder(SoftBevelBorder.RAISED));
	half.setBounds(500,50,80,80);
	half.setBorder(new SoftBevelBorder(SoftBevelBorder.RAISED));
	hintLabel.setBounds(290,50,200,80);
	hintLabel.setHorizontalAlignment(JLabel.CENTER);
	hintLabel.setForeground(Color.white);
	hintLabel.setBorder(new LineBorder(Color.white, 2, true));

	hintBTN.addActionListener((ActionEvent e) -> {
	hintLabel.setText(hint);
	});

	half.addActionListener((ActionEvent e) -> {
	if (!option1.getText().equals(correct_answer)) {
	option1.setEnabled(false);
	option1.setBackground(Color.red);
	}else if (!option2.getText().equals(correct_answer)) {
	option2.setEnabled(false);
	option2.setBackground(Color.red);
	}
	if (!option3.getText().equals(correct_answer)) {
	option3.setEnabled(false);
	option3.setBackground(Color.red);
	}else if (!option4.getText().equals(correct_answer)) {
	option4.setEnabled(false);
	option4.setBackground(Color.red);
	}
	});

	window.setVisible(true);
	}

	void getAnswer (int time) throws InterruptedException {

	option1.addActionListener((ActionEvent e) -> {
	if (option1.getText().equals(correct_answer)) score++ ;
	next = true ;
	});

	option2.addActionListener((ActionEvent e) -> {
	if (option2.getText().equals(correct_answer)) score++ ;
	next = true ;
	});

	option3.addActionListener((ActionEvent e) -> {
	if (option3.getText().equals(correct_answer)) score++ ;
	next = true ;
	});

	option4.addActionListener((ActionEvent e) -> {
	if (option4.getText().equals(correct_answer)) score++ ;
	next = true ;
	});

	while (next == false ) {

	timer.setText(String.format("%02d", count.M)+" : "+String.format("%02d", count.S)+" : "+String.format("%03d", count.Ms));
	count.Ms++ ;
	Thread.sleep(1);
	if (count.Ms==999){
	count.S++ ;
	count.Ms=0 ;
	}
	if (count.S==59){
	count.M++ ;
	count.S=0;
	}

	if ((count.S + count.M*60) > time-3 ) {

	timer.setForeground(Color.red);

	if ((count.S + count.M*60)==time) {
	return ;
	}
	}

	}

	next = false ;

	}

	int getScore() {return score ;}

	counter getTime () {return count ;}

	void Reset () {

	count.M=0 ;
	count.Ms=0 ;
	count.S=0;
	score = 0 ;

	}

	}

view raw questions.java hosted with ❤ by GitHub

Preview:

Score panel:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	class scorePane extends JPanel {

	JButton playAgain ,
	exit ;

	JLabel scoreLabel ;

	static boolean again =false;

	scorePane (JFrame window , int score , int nbrQ) {

	setSize(window.getSize().width,window.getSize().height);
	setLayout(null);
	setBackground(Color.DARK_GRAY);
	window.setContentPane(this);

	playAgain = new JButton ("Back To Menu");
	playAgain.setBackground(new Color(255,255,255)) ;
	playAgain.setBounds(300,250,200,50);
	add(playAgain);

	exit = new JButton ("Exit");
	exit.setBackground(new Color(255,255,255)) ;
	exit.setBounds(300,350,200,50);
	add(exit);

	scoreLabel = new JLabel ("You Got : "+score+"/"+nbrQ);
	scoreLabel.setHorizontalAlignment(JLabel.CENTER);
	scoreLabel.setFont(new Font("Verdana", Font.BOLD, 40));
	scoreLabel.setForeground(Color.white);
	scoreLabel.setBorder(new LineBorder(Color.white, 2, true));
	scoreLabel.setBounds(200,100,400,100);
	add(scoreLabel);

	window.setVisible(true);

	}

	void choose () {

	playAgain.addActionListener((ActionEvent e) -> {
	again= true ;
	});

	exit.addActionListener((ActionEvent e) -> {
	System.exit(0);
	});

	while (!again) {
	try {
	Thread.sleep(0);
	} catch (InterruptedException ex) {}
	}

	again = false ;

	}

	}

view raw scorePanel.java hosted with ❤ by GitHub

Preview:

Main Class:

	import java.awt.event.ActionEvent;
	import javax.swing.*;
	import java.awt.* ;
	import javax.swing.border.LineBorder;
	import javax.swing.border.SoftBevelBorder;

	public class Quiz {
	public static void main(String[] args) throws InterruptedException {

	JFrame window = new JFrame ("Quiz Game") ;
	window.setSize(800,500);
	window.setLocationRelativeTo(null);
	window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	window.setResizable(false);

	while (true) {

	int nbr =0 , score=0 , m=0 , s=0 ;
	int time = 60 ; //sec

	welcomePage welcome = new welcomePage (window);
	welcome.choose(time);

	quiz2 [] qObj = {
	new quiz2("Question 1","op1","op2","op3","op4","op1","hint 1"),
	new quiz2("Question 2","op1","op2","op3","op4","op4","hint 2"),
	new quiz2("Question 3","op1","op2","op3","op4","op3","hint 3"),
	new quiz2("Question 4","op1","op2","op3","op4","op2","hint 4")
	};

	while (nbr != qObj.length && s<time ) {
	questions quiz = new questions(qObj[nbr], window);
	quiz.getAnswer(time);
	m = quiz.getTime().M ;
	s = quiz.getTime().S ;
	score = quiz.getScore();
	if (nbr == qObj.length-1 \|\| (s==time)) quiz.Reset();
	nbr++ ;
	}

	int nbrQ = qObj.length ;
	scorePane scorePane = new scorePane (window,score,nbrQ) ;
	scorePane.choose();

	}

	}
	}

view raw Quiz.java hosted with ❤ by GitHub

This applet may be freely copied and used by others.

I) In order to run the applet properly, you need to Download the java classes above and follow the steps :

open your terminal (or cmd).
go to the path of your classes' file. (cd \path "on windows").
compile your java files (use the command " javac *.java ").
run you java program (main class wich is Quiz.java).
done

II) Now in order to add or change the question of the quiz follow :

go to the main class (Quiz.java) there is an array of objects called "qObj" represented :

       quiz2 [] qObj = {

        new quiz2("Question 1","op1","op2","op3","op4","op1","hint 1"),
        
        new quiz2("Question 2","op1","op2","op3","op4","op4","hint 2"),
        
        new quiz2("Question 3","op1","op2","op3","op4","op3","hint 3"),
        
        new quiz2("Question 4","op1","op2","op3","op4","op2","hint 4")
        
        };

Put your questions on "Question 1,2.." attribute.
p1 , p2 , p3 , p4 are the choices.
the 6th attribute is the correct answer (so put the correct answer of the question there).
hint 1 , hint 2 ... are the hints of the correct answers.

If you wanna add other question all you have to do is : creating a new object from the class quiz2 and add it to the array "qObj":

        new quiz2("Your question","option 1","option 2","option 3","option 4","correct answer","Hint");

III) The timing : if you want to give the player more time to answer the questions there is a int variable called time in the main class:

        int time = 60 // time by seconds

you can change it to whatever you want.

Building a Multiple Choice Quiz | Java

Overview:

Welcome Panel:

Preview:

How it works window:

Preview:

"About" window:

Preview:

The Quiz game interface:

Preview:

Score panel:

Preview:

Main Class:

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