Nptel Programming in Java Week 9 Assignment Answers
Nptel Programming in Java Week 9 Assignment Answers
Searching for the Week 9 answers of the NPTEL “Programming in Java” course? You’re in the right spot! Here, you’ll find reliable and up-to-date solutions to help you complete your Week 9 assignment with confidence.
Programming In Java
With the growth of Information and Communication Technology, there is a need to develop large and complex software. Further, those software should be platform independent, Internet enabled, easy to modify, secure, and robust. To meet this requirement object-oriented paradigm has been developed and based on this paradigm the Java programming language emerges as the best programming environment. Now, Java programming language is being used for mobile programming, Internet programming, and many other applications compatible to distributed systems. This course aims to cover the essential topics of Java programming so that the participants can improve their skills to cope with the current demand of IT industries and solve many problems in their own filed of studies.
PREREQUISITES : This course requires that the students are familiar with programming language such as C/C++ and data structures, algorithms.
INDUSTRY SUPPORT : All IT companies.
COURSE LAYOUT – Click To Know More
Nptel Programming in Java Week 9 Assignment Answers
1. Which Swing component is best suited for displaying a drop-down list of selectable options?
a) JButton
b) JComboBox
c) JTextField
d) JPanel
2. What will be the output of the following Java code?
a) A frame with two buttons labeled “Button 1” and “Button 2”
b) A frame with only one button labeled “Button 2”
c) Compilation Error
d) Runtime Error
3. Which of the following is true about the JLabel component in Java Swing?
a) It is used only for displaying text
b) It can display text and icons
c) It cannot be added to a JPanel
d) It generates mouse events by default
4. Which method is used to handle mouse click events in Java Swing?
a) mouseClicked()
b) keyPressed()
c) actionPerformed()
d) componentShown()
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5. What should replace // INSERT CODE HERE to create a JFrame with a JButton labeled “Click Me”?
a) frame.add(button);
b) frame.insert(button);
c) frame.append(button);
d) frame.push(button);
6. Identify and correct the error in the following program: What should the erroneous line panel.setFlowLayout(); be replaced with?
a) panel.setLayout(new GridLayout());
b) panel.addFlowLayout();
c) panel.appendLayout(new FlowLayout());
d) panel.setLayout(new FlowLayout());
7. What will the following Java program output?
a) A frame with the label “Welcome to Swing”
b) A frame with no visible label
c) Compilation Error
d) Runtime Error
8. What does the following code do?
a) Creates a JFrame with a JButton labeled “Programming in Java”
b) Compiles with errors
c) Displays a message dialog
d) Creates a JPanel with a JButton labeled “Programming in Java”
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9. What happens when the button in this Java code snippet is clicked?
a) The program exits
b) A message dialog with the text “Welcome to the course” is displayed
c) The button label changes to “Welcome to the course”
d) Nothing happens
10. The container displays a number of components in a column, with extra space going between the first two components. Which of the following layout manager(s) is most naturally suited for the described layout?
a) BoxLayout
b) FlowLayout
c) BorderLayout
d) GridLayout
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