CS442: ADVANCED PROGRAMMING USING JAVA Lab 6: Classes and objects Computer Science Department

Lab Contents  Creating Classes and objects.  Private members.  Defining constructors.  Set and get methods. 2

Case Study… 3 Write a program composed of two classes: 1. class Square. 2. class Use_Square, which contains method main that test the different methods in the class Square.

UML Diagram.. 4

Variables and constructors.. 5 Defined variables and constructors:

Set and get methods … 6 Defined set and get:

Area & perimeter methods … 7 Computing area and perimeter of square:

ToString.. 8 The method toString():

Main Class 9

Sample Run.. 10