Wj 1103a Module 2 Exercise2

Exercise 2: Using the for Loop The objective of this exercise is to write classes that use for loops.

Task 1 – Developing a Class Using the for Loop

In this task, you write a class that counts from 1 to any number. Follow these steps to write your class: 1. Go to the loops directory. 2. Write a class called CounterTwo 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 initialize to any number, using a for loop. • Displays the count. 3. Compile your program. 4. Use the CounterTwoTest.class file to test your program.

Task 2 – Developing Another Class Using the for 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 SequenceTwo containing a method called displaySequence. The displaySequence method should contain a for loop that: • •

Performs an operation to calculate a number in the sequence. Displays the first 10 numbers in the sequence. The result should look like: 1 1 2 3 5 8 13 21 34 55

6. Compile your program.

7.

Use the SequenceTwoTest.class file to test your program.