Create a subclass named Square from the superclass GeometricObject. Create an instance variable named width with initial value 0 Create a no-arg constructor. Create the another constructor, which has one parameter named wid. Assign the wid to the instance variable named width. Create the getWidth() method, the setWidth() method. Override the getArea() method. Override the getPerimeter() method. Create a test class named Test to create an instance with wid%= 6 from Square class. Call the getArea() and getPermeter() methods to print out the area and perimeter of the square with width=6.
Create a subclass named Square from the superclass GeometricObject. Create an instance variable named width with initial value 0 Create a no-arg constructor. Create the another constructor, which has one parameter named wid. Assign the wid to the instance variable named width. Create the getWidth() method, the setWidth() method. Override the getArea() method. Override the getPerimeter() method. Create a test class named Test to create an instance with wid%= 6 from Square class. Call the getArea() and getPermeter() methods to print out the area and perimeter of the square with width=6.
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Transcribed Image Text:**Creating a Square Subclass from GeometricObject**
1. **Define the Square Subclass:**
- Create a subclass named `Square` from the superclass `GeometricObject`.
2. **Instance Variable:**
- Define an instance variable named `width` with an initial value of 0.
3. **Constructors:**
- Implement a no-argument constructor.
- Create an additional constructor that accepts one parameter, `wid`, and assigns it to the instance variable `width`.
4. **Methods:**
- Implement the method `getWidth()`.
- Implement the method `setWidth()`.
- Override the `getArea()` method to compute the area of the square.
- Override the `getPerimeter()` method to compute the perimeter of the square.
5. **Testing the Square Class:**
- Create a test class named `Test`.
- Generate an instance of `Square` with `wid = 6`.
- Use the `getArea()` and `getPerimeter()` methods to print the area and perimeter of the square with `width = 6`.
Transcribed Image Text:The image depicts a Java class for educational purposes. The class is an abstract representation of a geometric object, named `GeometricObject`. Below is an explanation and transcription of the class for use on an educational website.
### Abstract Class: GeometricObject
This abstract class is intended to provide a template for geometric objects.
```java
public abstract class GeometricObject {
private String color = "white";
private boolean filled;
private java.util.Date dateCreated;
/** Constructors */
protected GeometricObject() {
dateCreated = new java.util.Date();
}
protected GeometricObject(String color, boolean filled) {
dateCreated = new java.util.Date();
this.color = color;
this.filled = filled;
}
/** Accessors & mutators */
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public boolean isFilled() {
return filled;
}
public void setFilled(boolean filled) {
this.filled = filled;
}
public java.util.Date getDateCreated() {
return dateCreated;
}
@Override
public String toString() {
return "created on " + dateCreated + "\ncolor: " + color +
" and filled: " + filled;
}
/** Abstract method getArea & getPerimeter */
public abstract double getArea();
public abstract double getPerimeter();
}
```
### Explanation:
- **Attributes:**
- `color`: A `String` representing the color of the geometric object, initialized to "white".
- `filled`: A `boolean` indicating whether the object is filled.
- `dateCreated`: A `Date` object that indicates when the object was created.
- **Constructors:**
- The default constructor initializes `dateCreated`.
- An overloaded constructor allows setting the `color` and `filled` state.
- **Accessors (Getters) and Mutators (Setters):**
- Methods for accessing (`getColor`, `isFilled`, `getDateCreated`) and modifying (`setColor`, `setFilled`) the attributes.
- **Abstract Methods:**
- `getArea()` and `getPerimeter()` are abstract methods intended to
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