You asked: How do you create a rectangle class in Java?

Is there a rectangle class in Java?

awt. Rectangle. A rectangle specifies an area in a coordinate space that is defined by the rectangle’s top-left point (x, y) in the coordinate space, its width, and its height.

How do you create a class box in Java?

Java Class

  1. « Previous Tutorial Next Tutorial » …
  2. class classname { type instance-variable1; type instance-variable2; //… …
  3. class Box { double width; double height; double depth; } …
  4. Box mybox = new Box(); // creates a Box object called mybox. …
  5. mybox.

How do you code a rectangle in Java?

Java Program

  1. public class rectangle{
  2. public static void main(String args[])
  3. {
  4. int width=5;
  5. int height=10;
  6. int area=width*height;
  7. System.out.println(“Area of rectangle=”+area);
  8. }

What shape is a rectangle?

A rectangle can also be known as an equiangular quadrilateral. This is because a rectangle is a quadrilateral shape (4-sided shape) that has parallel sides, equal to one another, and all 4 corners have angles that are 90º. Because all the angles are 90º, a rectangle shape can also be called anequiangular quadrilateral.

What is a class and object?

a class describes the contents of the objects that belong to it: it describes an aggregate of data fields (called instance variables), and defines the operations (called methods). object: an object is an element (or instance) of a class; objects have the behaviors of their class.

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What is the difference between class and object?

It is a user-defined data type, that holds its own data members and member functions, which can be accessed and used by creating an instance of that class. It is the blueprint of any object.

Difference between Class and Object.

S. No. Class Object
1 Class is used as a template for declaring and creating the objects. An object is an instance of a class.

Is overriding possible in Java?

In Java, methods are virtual by default. We can have multilevel method-overriding. Overriding vs Overloading : … Overriding is about same method, same signature but different classes connected through inheritance.

How do you find the area and perimeter of a rectangle in Java?

Logic to find perimeter and area of a rectangle

  1. Input length and width of rectangle from user. …
  2. Apply formula to calculate rectangle perimeter i.e. perimeter = 2 * (length + width) .
  3. Apply formula to calculate rectangle area i.e. area = length * width .
  4. Finally, print the value of perimeter and area .

What is Setattr () used for?

What is setattr() used for? The Python setattr() function sets a new specified value argument to the specified attribute name of a class/function’s defined object. This method provides an alternate means to assign values to class variables, in addition to constructors and object functions.

Can constructor be private?

Yes. Class can have private constructor. Even abstract class can have private constructor. By making constructor private, we prevent the class from being instantiated as well as subclassing of that class.

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