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COMP 274 Week 8 Final Exam

COMP 274 Week 8 Final Exam

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Author: Christine Farr
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1. (TCO 1) The javac command produces a file which(Points : 6)
2. (TCO 1) The JVM executes a Java application by(Points : 6)
3. (TCO 1) Which method call converts the value in variable stringVariable to a double?(Points : 6)
4. (TCO 1) What output does the following code generate?
int a = 10;
double d = 123.456;
String s = “Hi there!”;
System.out.printf(“%s %d %.2f”, s, a, d);(Points : 6)
5. (TCO 1) Which of the following gets a double value from the user?(Points : 6)
6. (TCO 1) When a Java method is passed an array as a parameter, how does the method know how many elements the array has?(Points : 6)
7. (TCO 2) Non-static methods of a class(Points : 6)
8. (TCO 2) What is a primary difference between inheritance in Java and inheritance in C++?(Points : 6)
9. (TCO 3) How would you set the layout of a JFrame to create 64 equal sized areas arranged like a chess board?(Points : 6)
10. (TCO 3) One way to display a set of three JButtons horizontally arranged on the top of the display is to add the buttons to a JPanel with(Points : 6)
11. (TCO 3) Given a JFrame object named frame with a default layout manager, what would the display look like given the following code?
frame.add(button1, BorderLayout.NORTH);
frame.add(button2, BorderLayout.NORTH);(Points : 6)
12. (TCO 4) To handle the event generated by typing the enter key in a JTextField, you would need to (Points : 6)
13. (TCO 4) What can you say about the following Java class definition?

public class MyClass extends JFrame
{
…….
private class RadioButtonHandler implements ItemListener { … }
}(Points : 6)
14. (TCO 3) Which of the following is true for a JLabel?(Points : 6)
15. (TCO 3) A JTextArea(Points : 6)


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