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Accounting /Java Programming Concepts and Classes

Java Programming Concepts and Classes

Accounting30 CardsCreated 3 months ago

This deck covers key concepts and classes in Java programming, including object-oriented programming, class methods, and instance variables. It also includes examples of using classes like Rectangle, Point, Student, and more.

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What does the Rectangle class represent?

The Rectangle class represents a rectangle with a specified width and height.
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Key Terms

Term
Definition
What does the Rectangle class represent?
The Rectangle class represents a rectangle with a specified width and height.
How do you create a Rectangle object with width 5 and height 12?
Rectangle room = new Rectangle(5, 12);
What method in the Rectangle class returns the area?
The getArea() method returns the area of the rectangle.
What is the purpose of the toString() method in the Rectangle class?
It returns a string representation of the rectangle, including its width and height.
How do you call a method to get the height of a Rectangle object?
Use the getHeight() method.
What does the Point class represent?
The Point class represents a point in a 2D space with x and y coordinates.
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Java Programming Concepts and Classes
TermDefinition
What does the Rectangle class represent?
The Rectangle class represents a rectangle with a specified width and height.
How do you create a Rectangle object with width 5 and height 12?
Rectangle room = new Rectangle(5, 12);
What method in the Rectangle class returns the area?
The getArea() method returns the area of the rectangle.
What is the purpose of the toString() method in the Rectangle class?
It returns a string representation of the rectangle, including its width and height.
How do you call a method to get the height of a Rectangle object?
Use the getHeight() method.
What does the Point class represent?
The Point class represents a point in a 2D space with x and y coordinates.
How do you move a Point object by 3 units right and 4 units up?
Use the move(3, 4) method.
What is the output of the toString() method in the Point class?
It returns the coordinates of the point in the format 'x, y'.
What does the Student class represent?
The Student class represents a student with a first name, last name, and grade level.
How do you create a Student object for Alan Turing in grade 11?
Student alan = new Student('Alan', 'Turing', 11);
What is the purpose of the toString() method in the Student class?
It returns a string representation of the student, including their name and grade level.
What does the TextMessage class represent?
The TextMessage class represents a text message with a sender, receiver, and message content.
How do you create a TextMessage from Bart to Lisa saying 'Where are you?'?
TextMessage bart = new TextMessage('Bart', 'Lisa', 'Where are you?');
What does the CoinFlips class simulate?
It simulates flipping a coin 100 times and counts the number of heads and tails.
How is the longest streak of heads calculated in the LongestStreak class?
By iterating over coin flips and tracking the current and longest streak of heads.
What does the GeoLocation class represent?
The GeoLocation class represents a geographic location with latitude and longitude.
How do you calculate the distance between two GeoLocation objects?
Use the distanceFrom() method.
What does the Triangle class represent?
The Triangle class represents a triangle with a specified width and height.
What is the output of the toString() method in the Flower class?
It returns the flower's color, name, genus, and species.
What does the Dog class represent?
The Dog class represents a dog with a breed and name.
How do you create a Dog object for a Golden Retriever named Sammy?
Dog golden = new Dog('Golden Retriever', 'Sammy');
What additional field does the Student class include for GPA?
A double field named gpa.
How do you check if a Student is an honors student?
Use the isHonorsStudent() method, which returns true if the GPA is 3.5 or higher.
What does the Pizza class represent?
The Pizza class represents a pizza with a type, toppings, and size.
How do you create a Fraction object representing 1/2?
Fraction half = new Fraction(1, 2);
What is the purpose of the getPerimeter() method in the Rectangle class?
It returns the perimeter of the rectangle.
What does the BaseballPlayer class represent?
The BaseballPlayer class represents a baseball player with a name, hits, and at-bats.
How do you calculate the batting average of a BaseballPlayer?
Use the getBattingAverage() method, which divides hits by at-bats.
What does the Circle class represent?
The Circle class represents a circle with a specified radius.
How do you calculate the area of a Circle object?
Use the getArea() method, which calculates π * radius^2.