1. Create a test class which will have main method in it and will do as follows:

• Create five different objects of Employee class using all constructors. One should be created at least using non-parametrised constructor.
• For objects created with non-parametrised constructor, use setter to set the values and display the details.
• For all other objects, display details of all employees using other method.

1. How many constructors does the class Rectangle provide?

2. How many methods does the class Rectangle provide?

3. How many instance variables does the class Rectangle have?

4. Briefly explain the purpose of the following two lines of code:

Rectangle aRectangle;

aRectangle = new Rectangle();

5. The two lines of code can be combined into on Provide this one line of code:

6. What method is used to set the width of an instance of the Rectangle class? What data type does it expect as an argument?

7. What method is used to set the length of an instance of the Rectangle class? What data type does it expect as an argument?