import java.awt.*; import javax.swing.*; import java.awt.event.*; import java.util.Random; import java.util.*; /** * JavaTrivia - a trivia game that assesses the user's knowledge on the fundamentals of Java programming * * @author Chase Conner * @version JAVA SE 8 * @course CSCI 1130-01 * @date 11-15-15 * @URL http://www.geocities.ws/chasec366/javaapplets/Final%20Project%20-%20Fundamentals%20of%20Java%20Programming%20Trivia%20Game/JavaTrivia.html * * Note: Resource bibliography is at the bottom of the applet in a multiline comment */ public class JavaTrivia extends JApplet implements ActionListener { //declares and initializes the Trivia buttons JButton[ ] JQuestion = { new JButton("10"), new JButton("20"), new JButton("30"), new JButton("40"), new JButton("50") }; //possible answers for questions 1 to 3 Object[] possibleAnswers1 = {"package", "method", "class"}; Object[] possibleAnswers2 = {"x and y coordinates", "pixels", "clicking on the screen"}; Object[] possibleAnswers3 = {"a header comment", "an inline comment", "an outline comment", "a secondary comment"}; //possible answers for questions 4 to 6 Object[] possibleAnswers4 = {"sets the color", "creates a new color", "randomly sets the color as red, green, or blue"}; Object[] possibleAnswers5 = {"Integer", "Boolean", "String", "Character"}; Object[] possibleAnswers6 = {"A security feature that restricts access to the source code.", "Sets the level of access to classes, variables, and methods by other classes."}; //possible answers for questions 7 to 9 Object[] possibleAnswers7 = {"10", "8", "9", "7"}; Object[] possibleAnswers8 = {"An instance variable's values are shared among classes.", "Instance variables are stored inside static memory.", "Instance variables are declared outside of methods."}; Object[] possibleAnswers9 = {"for", "while", "do-while"}; //possible answers for questions 10 to 12 Object[] possibleAnswers10 = {"Yes, they do", "No, they don't"}; Object[] possibleAnswers11 = {"void employeeInfo(String name, String title, double salary)", "methodCall(employeeInfo)", "employeeInfo(name, title, salary);"}; Object[] possibleAnswers12 = {"Yes, they can", "No, they can't"}; //possible answers for questions 13 to 15 Object[] possibleAnswers13 = {"0", "nothing", "null"}; Object[] possibleAnswers14 = {"break;", "another bracket", "stop;"}; Object[] possibleAnswers15 = {"A method that returns the value of a field.", "A method that sets the value of a field.", "A method that duplicates values of a field."}; Random rand = new Random(); //allocates Random constructor to memory String inputBox; //the String that references the user's input int pointsEarned, score; //declares the score and the instance for the number of points earned private Scoreboard scoreboard; //declaration to access methods from Scoreboard class private AnswerAnalysis analysis; //declaration to access methods from AnalyzeAnswer class //array lists for the questions ArrayList tenPointQuestion; ArrayList twentyPointQuestion; ArrayList thirtyPointQuestion; ArrayList fortyPointQuestion; ArrayList fiftyPointQuestion; //array list for the answers ArrayList questionTenAnswers; ArrayList questionTwentyAnswers; ArrayList questionThirtyAnswers; ArrayList questionFortyAnswers; ArrayList questionFiftyAnswers; protected boolean attemptedQuestion = false; //boolean to execute the analysis class graphics once the user has attempted a question public void init() { setLayout (new FlowLayout( ) ); //changes the layout to Flow Layout //adds the JButtons to the applet window for (int i=0; i(); tenPointQuestion.add("What is Graphics"); tenPointQuestion.add("For drawing methods, how do you specify where to draw?"); tenPointQuestion.add("What do two forward slashes // create?"); twentyPointQuestion = new ArrayList(); twentyPointQuestion.add("Color mycolor = new Color(red, green, blue) does what?"); twentyPointQuestion.add("What data type would you use to tell the program to determine if an answer is correct or incorrect?"); twentyPointQuestion.add("What is an access modifier? (Hint: public, private, and protected)"); thirtyPointQuestion = new ArrayList(); thirtyPointQuestion.add("If an array begins at an index of 0 and ends at an index of 9, what index is the last element of the array located in?"); thirtyPointQuestion.add("Which of the following is true about instance variables?"); thirtyPointQuestion.add("What loop do you use to execute code a specified number of times?"); fortyPointQuestion = new ArrayList(); fortyPointQuestion.add("In an enhanced for loop, does the element type have to match the data type of the array?"); fortyPointQuestion.add("What would the method call look like for public void employeeInfo(String name, String title, double salary)?"); fortyPointQuestion.add("Can fields and methods be inherited from a parent class to a subclass if their access modifiers are set to private?"); fiftyPointQuestion = new ArrayList(); fiftyPointQuestion.add("What is the default value for constructors?)"); fiftyPointQuestion.add("while (runAgain){ init() start() };: the following loop executes even if the user wants it to stop by making the boolean value (runAgain) false. What is missing inside of the code?"); fiftyPointQuestion.add("What are mutator methods?"); //commits the question to memory questionTenAnswers = new ArrayList(); //adds possible answers to array list questionTenAnswers.add(possibleAnswers1); questionTenAnswers.add(possibleAnswers2); questionTenAnswers.add(possibleAnswers3); questionTwentyAnswers = new ArrayList(); questionTwentyAnswers.add(possibleAnswers4); questionTwentyAnswers.add(possibleAnswers5); questionTwentyAnswers.add(possibleAnswers6); questionThirtyAnswers = new ArrayList(); questionThirtyAnswers.add(possibleAnswers7); questionThirtyAnswers.add(possibleAnswers8); questionThirtyAnswers.add(possibleAnswers9); questionFortyAnswers = new ArrayList(); questionFortyAnswers.add(possibleAnswers10); questionFortyAnswers.add(possibleAnswers11); questionFortyAnswers.add(possibleAnswers12); questionFiftyAnswers = new ArrayList(); questionFiftyAnswers.add(possibleAnswers13); questionFiftyAnswers.add(possibleAnswers14); questionFiftyAnswers.add(possibleAnswers15); } public void actionPerformed (ActionEvent event){ Object buttonClicked = event.getSource( ); //converts all the array lists back to arrays Object[] convertedTenAnswers = questionTenAnswers.toArray(new Object[questionTenAnswers.size()]); Object[] convertedTwentyAnswers = questionTwentyAnswers.toArray(new Object[questionTwentyAnswers.size()]); Object[] convertedThirtyAnswers = questionThirtyAnswers.toArray(new Object[questionThirtyAnswers.size()]); Object[] convertedFortyAnswers = questionFortyAnswers.toArray(new Object[questionFortyAnswers.size()]); Object[] convertedFiftyAnswers = questionFiftyAnswers.toArray(new Object[questionFiftyAnswers.size()]); //Displays the randomized question after a button is clicked if (buttonClicked == JQuestion[0]){ int t = rand.nextInt(tenPointQuestion.size()); //picks an index to use as a random number from the array list //input window inputBox = (String)JOptionPane.showInputDialog(this, tenPointQuestion.get(t), "Please choose the best possible answer", JOptionPane.QUESTION_MESSAGE, null, (Object[])convertedTenAnswers[t], null); //removes the question from the array tenPointQuestion.remove(t); //removes the list of possible answers to a question questionTenAnswers.remove(t); if (tenPointQuestion.isEmpty()){ JQuestion[0].setEnabled(false); } attemptedQuestion = true; } else if (buttonClicked == JQuestion[1]){ int m = rand.nextInt(twentyPointQuestion.size()); inputBox = (String)JOptionPane.showInputDialog(this, twentyPointQuestion.get(m), "Please choose the best possible answer", JOptionPane.QUESTION_MESSAGE, null, (Object[])convertedTwentyAnswers[m], null); twentyPointQuestion.remove(m); questionTwentyAnswers.remove(m); if (twentyPointQuestion.isEmpty()){ JQuestion[1].setEnabled(false); } attemptedQuestion = true; } else if (buttonClicked == JQuestion[2]){ int w = rand.nextInt(thirtyPointQuestion.size()); inputBox = (String)JOptionPane.showInputDialog(this, thirtyPointQuestion.get(w), "Please choose the best possible answer", JOptionPane.QUESTION_MESSAGE, null, (Object[])convertedThirtyAnswers[w], null); thirtyPointQuestion.remove(w); questionThirtyAnswers.remove(w); if (thirtyPointQuestion.isEmpty()){ JQuestion[2].setEnabled(false); } attemptedQuestion = true; } else if (buttonClicked == JQuestion[3]){ int n = rand.nextInt(fortyPointQuestion.size()); inputBox = (String)JOptionPane.showInputDialog(this, fortyPointQuestion.get(n), "Please choose the best possible answer", JOptionPane.QUESTION_MESSAGE, null, (Object[])convertedFortyAnswers[n], null); fortyPointQuestion.remove(n); questionFortyAnswers.remove(n); if (fortyPointQuestion.isEmpty()){ JQuestion[3].setEnabled(false); } attemptedQuestion = true; } else if (buttonClicked == JQuestion[4]){ int q = rand.nextInt(fiftyPointQuestion.size()); inputBox = (String)JOptionPane.showInputDialog(this, fiftyPointQuestion.get(q), "Please choose the best possible answer", JOptionPane.QUESTION_MESSAGE, null, (Object[])convertedFiftyAnswers[q], null); fiftyPointQuestion.remove(q); questionFiftyAnswers.remove(q); if (fiftyPointQuestion.isEmpty()){ JQuestion[4].setEnabled(false); } attemptedQuestion = true; } analysis.analyzeAnswer(inputBox); //method call to determine if the answer is correct or incorrect. Then displays the appropriate message box scoreboard.getPoints(inputBox); //parses the input to determine if the answer is correct or incorrect, and if correct, determines the amount of points the user earns scoreboard.calculateScore(); //calculates and updates the score repaint(); //refreshes the graphics in the applet window } public void paint (Graphics g) { super.paint(g); scoreboard.display(g); //displays the scoreboard if (attemptedQuestion == true){ analysis.display(g); //displays the drawString that informs the user if they answered correctly or incorrectly } g.setFont(new Font("Century Schoolbook", Font.BOLD, 35)); g.setColor(Color.orange); //draws the game's title g.drawString("Java Fundamentals Trivia", 315, 100); //changes the color and the font g.setColor(Color.black); g.setFont(new Font("Calibri", Font.BOLD, 30)); //displays the title for directions g.drawString("Directions", 550, 200); g.setFont(new Font("Calibri", Font.PLAIN, 20)); //decreases font size and changes the style to plain //displays the directions g.drawString("This is a trivia game that tests your knowledge on", 400, 265); g.drawString("the fundamentals of Java programming. There are five buttons containing three", 400, 285); g.drawString("questions that will be randomized and removed after an attempt. When all", 400, 305); g.drawString("three questions of a button have been attempted, the button is", 400, 325); g.drawString("is disabled. The numbers on the buttons represent the difficulty", 400, 345); g.drawString("of the question and the number of points earned upon answering", 400, 365); g.drawString("correctly. The game is over once you've attempted all of the questions.", 400, 385); g.drawString("Compare your scores from game to game as a way to", 400, 405); g.drawString("measure your improvement. Do your best!", 400, 425); } /* Final Project Resources 1. Oracle Java Documentation: The Java Tutorials Access Tutorial: http://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html Arrays: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html Inheritance: https://docs.oracle.com/javase/tutorial/java/IandI/subclasses.html 2. TutorialPoint Variable Types: http://www.tutorialspoint.com/java/java_variable_types.htm ArrayList: http://www.tutorialspoint.com/java/java_arraylist_class.htm 3. Abouttech Accessors and Mutators: http://java.about.com/od/workingwithobjects/a/accessormutator.htm 4. Java Beginners Tutorial Instance Variable in Java: http://javabeginnerstutorial.com/core-java-tutorial/instance-variable-in-java/ Introduction to Programming with Java Applets Boese, Elizabeth Sugar. An Introduction to Programming with Java Applets. Sudbury, MA: Jones and Bartlett, 2010. Print. */ }