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Orlov [11]
2 years ago
13

4. When the keyword ____________________ is followed by a parenthesis, it indicates a call to the superclass constructor.

Computers and Technology
1 answer:
Andreyy892 years ago
5 0

Answer:

Super

Explanation:

In object-oriented programming (OOP) language, an object class represents the superclass of every other classes when using a programming language such as Java. The superclass is more or less like a general class in an inheritance hierarchy. Thus, a subclass can inherit the variables or methods of the superclass.

Basically, all instance variables that have been used or declared in any superclass would be present in its subclass object.

Hence, when the keyword super is followed by a parenthesis, it indicates a call to the superclass constructor and it should be the first statement declared in the subclass constructor.

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Which amendment to the Constitution ended slavery in the United States?
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<span>The amendment to the constitution which ended slavery in the United States of America is the thirteen amendement. The correct option is B. The thirteen amendment forbades slavery and involuntary servitude in United States of America. The amendment was passed at the end of the civil war.</span>
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Write a test program that creates two Rectangle objects—one with width 4 and height 40 and the other with width 3.5 and height 3
BARSIC [14]

Answer:

public class Rectangle {

   private double width;

   private double heigth;

   public Rectangle(double width, double heigth) {

       this.width = width;

       this.heigth = heigth;

   }

   public double getWidth() {

       return width;

   }

   public void setWidth(double width) {

       this.width = width;

   }

   public double getHeigth() {

       return heigth;

   }

   public void setHeigth(double heigth) {

       this.heigth = heigth;

   }

   public double perimeter(double width, double heigth){

       double peri = 2*(width+heigth);

       return peri;

   }

   public double area(double width, double heigth){

       double area = width*heigth;

       return  area;

   }

}

class RectangleTest{

   public static void main(String[] args) {

       //Creating two Rectangle objects

       Rectangle rectangle1 = new Rectangle(4,40);

       Rectangle rectangle2 = new Rectangle(3.5, 35.7);

       //Calling methods on the first Rectangel objects

       System.out.println("The Height of Rectangle 1 is: "+rectangle1.getHeigth());

       System.out.println("The Width of Rectangle 1 is: "+rectangle1.getWidth());

       System.out.println("The Perimeter of Rectangle 1 is: "+rectangle1.perimeter(4,40));

       System.out.println("The Area of Rectangle 1 is: "+rectangle1.area(4,40));

       // Second Rectangle object

       System.out.println("The Height of Rectangle 2 is: "+rectangle2.getHeigth());

       System.out.println("The Width of Rectangle 2 is: "+rectangle2.getWidth());

       System.out.println("The Perimeter of Rectangle 2 is: "+rectangle2.perimeter(4,40));

       System.out.println("The Area of Rectangle 2 is: "+rectangle2.area(4,40));

   }

}

Explanation:

  • Firstly A Rectangle class is created with two fields for width and heigth, a constructor and getters and setters the class also has methods for finding area and perimeters
  • Then a RectangleTest class containing a main method is created and two Rectangle objects are created (Follow teh comments in the code)
  • Methods to get height, width, area and perimeter are called on each rectangle object to print the appropriate value
5 0
3 years ago
2. Because technology is always changing, there are new applications being developed constantly. (1 point)
Zepler [3.9K]
True because we need new tech
4 0
3 years ago
Read 2 more answers
(Exhibit: Production Possibilities Curves 2) Assume that a nation is operating on production possibilities curve CD. Economic gr
Alex

Answer:

b. shift from curve CD to curve EF.

Required Details of the Question:

The image of the curve required to answer the question has been attached.

Explanation:

A production possibilities curve shows various combinations of the amounts of two goods( in this case capital and consumer goods) which can be produced within the given resources and a graphical representation showing all the possible options of output for the two products that can be produced using all factors of production.

Now the growth of an economy is best illustrated in the image by the shift from curve CD to curve EF, this means that as the nation's production capacity increases, its production possibilities curve shift outward showing an increase in production of both goods.

3 0
3 years ago
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