CSE2137 - Object Oriented Programming¶

Event-Based and GUI Programming¶

Q5(a) [4]: What is the relationship between an event-listener interface and an event-adapter class? How can a GUI component handle its own events?
Q6(b) [5]: Write a program to have a GUI based simple calculator in a frame supporting addition and subtraction. There are buttons for 0 to 9 digits and for arithmetic operations. Select layout of your choice.
Q6(c) [5]: Write code segment of a simple JFrame with one JLabel and JButton.

Q6(a) [5]: Draw the block diagram of applet class inherited properties from a long chain of classes. Explain briefly the life cycle of an applet.
Q6(b) [5]: Write an applet program that draws a rectangle, an oval, a string and a line on the applet.
Q7(a) [4]: Describe the purpose of any six Swing components.
Q7(b) [2]: What are AWT and GUI?
Q7(c) [4]: Write a complete program to have 3 Buttons in a frame having exit capabilities. Buttons are to be added in the frame as per the layout of your choice. Count and display number of times each Button being clicked.

Q7(a) [1+2]: What is SWING library used for in Java? What is the base package that you have to import for SWING classes?
Q7(b) [2+1]: What are layout managers? Name three of the Layout managers SWING has.

Q5(b) [2+3]: What is an event in event-based programming? Discuss the types of events.
Q5(c) [3]: Discuss the benefits of delegation event model in programming.
Q6(a) [1+2]: What does GUI stand for? Why is it important?
Q7(a) [1+2]: What are layout managers? Mention the name of three layout manager available in java swing package.

Q6(c) [5]: Containers and components are two types of Java GUI elements. Using a suitable diagram explain those elements.
Q7(a) [1+2]: What are layout managers? Mention the name of three layout managers available in Java swing package.
Q7(b) [4]: What are the three components in the delegation event model? Explain.
Q7(c) [2+2]: What is the relationship between an event-listener interface and an event-adapter class? How can a GUI component handle its own events?

Q5(b) [5]: Containers and components are two types of Java GUI elements. Using a suitable diagram explain those elements.
Q5(c) [1+4]: What are layout managers? Mention the name of three layout managers available in Java with proper diagram.
Q7(b) [4]: Write a Java Program that draw a rectangle, an oval, a string and a line.
Q7(c) [2+3]: What is an event in event-based programming? Discuss the types of events.