L10a

Due by the end of this meeting

Starter Files:

• Quick.java
• Rectangle.java

Restricted Generic Types

Activity 1

Make a program called Lab10 that creates a List of at least ten Rectangle objects with widths and heights between 1.0 and 10.0. Print them out, one per line using a method printRectangles.

For example, your output might be

- 5.3x3.4 Rectangle - 3.0x7.6 Rectangle - 4.1x6.2 Rectangle - 2.9x4.0 Rectangle - 9.4x1.4 Rectangle - 9.0x2.7 Rectangle - 2.8x7.7 Rectangle - 6.4x4.4 Rectangle - 3.9x1.3 Rectangle - 3.3x2.0 Rectangle

Activity 2

Extend the program above by using the methods from Quick to find the three smallest by width and the three largest by area. Print out the whole List one element per line after each operation.

Do not sort the whole array.

For example, your output might be:

Original List - 4.7x5.6 Rectangle - 9.4x9.2 Rectangle - 5.4x4.3 Rectangle - 3.1x5.2 Rectangle - 5.0x1.4 Rectangle - 3.4x5.8 Rectangle - 1.6x7.7 Rectangle - 7.6x2.8 Rectangle - 2.5x3.9 Rectangle - 7.3x6.6 Rectangle With three narrowest at front: - 1.6x7.7 Rectangle - 2.5x3.9 Rectangle - 3.1x5.2 Rectangle - 3.4x5.8 Rectangle - 4.7x5.6 Rectangle - 5.4x4.3 Rectangle - 9.4x9.2 Rectangle - 7.6x2.8 Rectangle - 7.3x6.6 Rectangle - 5.0x1.4 Rectangle With three largest areas at end: - 5.0x1.4 Rectangle - 2.5x3.9 Rectangle - 1.6x7.7 Rectangle - 3.1x5.2 Rectangle - 3.4x5.8 Rectangle - 7.6x2.8 Rectangle - 5.4x4.3 Rectangle - 4.7x5.6 Rectangle - 7.3x6.6 Rectangle - 9.4x9.2 Rectangle

• 0 points: code does not compile; or does neither activity is complete and correct; or either activity uses methods or controls other than those required.
• 1 point: one of the two activities is complete and correct; or both activities are complete and correct but the program style is incorrect; or both activities are mostly correct and the style is fine.
• 2 points: both activities are complete and correct, and the program uses correct style.

Submit this/these files:

• L10.java