In Java the statement used to call a method computeSum() of ClassA from within ClassB is “ ClassA.computeSum() ”. Hence, the correct answer is option “ A ”.

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Add a timer in the following code. public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long elapsedTime; public GameGUI(Labyrinth labyrinth, Player player, Dragon dragon) { this.labyrinth = labyrinth; this.player = player; this.dragon = dragon; String playerName = JOptionPane.showInputDialog("Enter your name:"); player.setName(playerName); elapsedTime = 0; timer = new Timer(1000, e -> { elapsedTime++; repaint(); }); timer.start(); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); int cellSize = Math.min(getWidth() / labyrinth.getSize(), getHeight() / labyrinth.getSize());}

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Chapter 3, Problem 3RQ

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In Java the statement used to call a method computeSum() of ClassA from within ClassB is “ClassA.computeSum()”.

Hence, the correct answer is option “A”.

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