Posted: September 16th, 2017
Programming Exercises
EX 1:
What is wrong with the following program?
EX 2:
What is wrong in the following code?
Programming Exercises
EX 1:
(The MyInteger class) Design a class named MyInteger. The class contains:
- An int data field named value that stores the int value represented by this object.
- A constructor that creates a MyInteger object for the specified int value.
- A get method that returns the int value.
- Methods isEven(), isOdd(), and isPrime() that return true if the value is even, odd, or prime, respectively.
- Static methods isEven(int), isOdd(int), and isPrime(int) that return true if the specified value is even, odd, or prime, respectively.
- Static methods isEven(MyInteger), isOdd(MyInteger), and isPrime(MyInteger) that return true if the specified value is even, odd, or prime, respectively.
- Methods equals(int) and equals(MyInteger) that return true if the value in the object is equal to the specified value.
- A static method parseInt(int) that converts a string to an int value.
Draw the UML diagram for the class. Implement the class. Write a client program that tests all methods in the class.
EX 2:
- An int data field named id for the account (default 0).
- A double data field named balance for the account (default 0).
- A double data field named annualInterestRate that stores the current interest rate (default 0).
- A Date data field named dateCreated that stores the date when the account was created.
- A no-arg constructor that creates a default account.
- The accessor and mutator methods for id, balance, and annualInterestRate.
- The accessor method for dateCreated.
- A method named getMonthlyInterestRate() that returns the monthly interest rate.
- A method named withDraw that withdraws a specified amount from the account.
- A method named deposit that deposits a specified amount to the account.
Draw the UML diagram for the class. Implement the class. Write a test program that creates an Account object with an account ID of 1122, a balance of 20000, and an annual interest rate of 4.5%. Use the withdraw method to withdraw $2500, use the deposit method to deposit $3000, and print the balance, the monthly interest, and the date when this account was created.
Reading Exercise
Read chapter 7. Propose 6 – 12 keywords. Compose 2 – 3 sentences to describe each chapter in a concise, comprehensive, and unambiguous manner.
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