Wj 1103a Module 2 Exercise3

Exercise 3: Using the do/while Loop The objective of this exercise is to write classes that use do/while loops.

Task 1 – Writing a Class Using the do/while Loop In this task, you write a class that counts from 1 to some number. Follow these steps to write your class: 1. Go to the loops directory. 2. Write a class called CounterThree containing a method called displayCount that: • •

Counts from 1 to the value of the MAX_COUNT constant, where the MAX_COUNT constant is a variable that you must declare and initilize to any number, using a do/while loop Displays the count

3. Compile your program. 4. Use the CounterThreeTest.class file to test your program.

Task 2– Writing Another Class Using the do/while Loop In this task, you write a class called Sequence that displays a sequence starting with the numbers 1 and 1. Successive numbers in the sequence are the sum of the previous two numbers. For example: 1 1 2 3 5 8 13 and so on. Follow these steps to write your class: 5. Write a class called SequenceThree that contains a method called displaySequence. The displaySequence method should contain a do/while loop that: • •

Performs an operation to calculate a number in the sequence. Displays the numbers in the sequence, as long as the numbers in the sequence are less than 100. The result should look like: 1 1 2 3 5 8 13 21

34 55 89 6. Compile your program. 7.

Use the SequenceThreeTest.class file to test your program.