Questions and Exercises
Questions
In each of the following questions, choose the layout manager(s) most naturally suited for the described layout. Assume that the container controlled by the layout manager is a JPanel. [Hint: Two sections that might help are A Visual Index to Swing Components (page 37) in Chapter 3 and Choosing a Layout Manager (page 96) in this chapter.]
| 1: | The container has one component that should take up as much space as possible.
BorderLayout GridLayout GridBagLayout a and b b and c
| | 2: | The container has a row of components that should all be displayed at the same size, filling the container's entire area.
FlowLayout GridLayout BoxLayout a and b
| | 3: | The container displays a number of components in a column, with any extra space going between the first two components.
FlowLayout BoxLayout GridLayout BorderLayout
| | 4: | The container can display three completely different components at different times, depending perhaps on user input or program state. Even if the components' sizes differ, switching from one component to the next shouldn't change the amount of space devoted to the component.
SpringLayout BoxLayout CardLayout GridBagLayout
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Exercises
| 1: | Implement the layout described and shown in question 1. | | 2: | Implement the layout described and shown in question 2. | | 3: | Implement the layout described and shown in question 3. | | 4: | Implement the layout described and shown in question 4. | | 5: | By adding a single line of code, make the program you wrote for Exercise 2 display the component from right-to-left, instead of from left-to-right.
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Answers
You can find answers to the Questions and Exercises online:
http://java.sun.com/docs/books/tutorial/uiswing/QandE/answers.html
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