Admin at 14:29, 3 June 2011

2011-06-03T14:29:09Z

Admin: Created page with "=== Rectangle class === Create a Rectangle class using the following specifications (HINT: Use your Circle class as a template): '''BE SURE TO COMMENT YOUR CODE''' '''Attribut..."

2011-06-03T14:23:20Z

Created page with "=== Rectangle class === Create a Rectangle class using the following specifications (HINT: Use your Circle class as a template): '''BE SURE TO COMMENT YOUR CODE''' '''Attribut..."

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=== Rectangle class ===
Create a Rectangle class using the following specifications (HINT: Use your Circle class as a template):

'''BE SURE TO COMMENT YOUR CODE'''

'''Attributes (private):'''
* double length (default: 0.0)
* double width (default: 0.0)

'''Methods (public)'''
* default constructor (sets all attributes to their defaults)
* specific constructor (will have as many parameters as there are attributes)
** set all the attributes to be the same as the input parameters
* setters (mutators) for all attributes
* getters (accessors) for all attributes
* double getArea() (returns the area of the retangle)

=== RectangleTestMain: ===
Use the following code to test your Rectangle class:

<source lang="java">
public class RectangleTestMain
{
public static void main(String [] args)
{
//use the default constructor to create a new instance of Car
Rectangle myRect = new Rectangle();

//testing all getters (accessors)
System.out.println("myCar.getColor(): " + myCar.getColor());
System.out.println("myCar.getYear(): " + myCar.getYear());
System.out.println("myCar.getMake(): " + myCar.getMake());
System.out.println("myCar.getModel(): " + myCar.getModel());
System.out.println("myCar.getSpeed(): " + myCar.getSpeed());
System.out.println("myCar.getGear(): " + myCar.getGear());

//testing all setters (mutators)
myCar.setColor("green");
myCar.setYear(2001);
myCar.setMake("Isuzu");
myCar.setModel("Rodeo");
myCar.setSpeed(55);
myCar.setGear("D");

System.out.println("myCar.getColor(): " + myCar.getColor());
System.out.println("myCar.getYear(): " + myCar.getYear());
System.out.println("myCar.getMake(): " + myCar.getMake());
System.out.println("myCar.getModel(): " + myCar.getModel());
System.out.println("myCar.getSpeed(): " + myCar.getSpeed());
System.out.println("myCar.getGear(): " + myCar.getGear());

//test drive()
myCar.drive(88);

//test toString()
System.out.println(myCar);

//test park()
myCar.park();
System.out.println(myCar);
}
}
</source>

@@ Line 3: / Line 3: @@
 '''BE SURE TO COMMENT YOUR CODE'''
 '''Attributes (private):'''
@@ Line 29: / Line 28: @@
      //testing all getters (accessors)
-     System.out.println("myCar.getColor(): " + myCar.getColor());
+     System.out.println("myRect.getLength(): " + myRect.getLength());
-     System.out.println("myCar.getYear(): " + myCar.getYear());
+     System.out.println("myRect.getWidth(): " + myRect.getWidth());
      //testing all setters (mutators)
-     myCar.setColor("green");
+     myRect.setLength(3.1);
-    myCar.setYear(2001);
+     myRect.setWidth(2.0);
-     myCar.setMake("Isuzu");
-    myCar.setModel("Rodeo");
+     System.out.println("myRect.getLength(): " + myRect.getLength());  //should see 3.1
-     myCar.setSpeed(55);
+     System.out.println("myRect.getWidth(): " + myRect.getWidth());    //should see 2.0
-     //test park()
+     //test getArea()
-     myCar.park();
+     double area = myRect.getArea();
-     System.out.println(myCar);
+     System.out.println("Area => " + area);  //should see 6.2
+   }
+}
 </source>

Rectangle class assignment - Revision history

Admin at 14:29, 3 June 2011

Admin: Created page with "=== Rectangle class === Create a Rectangle class using the following specifications (HINT: Use your Circle class as a template): '''BE SURE TO COMMENT YOUR CODE''' '''Attribut..."