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Questions and Answers
Which UML diagram best represents the relationship depicted in the following code? public abstract class People { private int age; private String name; public abstract void printInfo(); } public class Student extends People { private int grade; public void printInfo() { ... }; } public class Teacher extends People { private int experience; public void printInfo() { ... }; }
Which UML diagram best represents the relationship depicted in the following code? public abstract class People { private int age; private String name; public abstract void printInfo(); } public class Student extends People { private int grade; public void printInfo() { ... }; } public class Teacher extends People { private int experience; public void printInfo() { ... }; }
What is the name of the abstract class in the provided code?
What is the name of the abstract class in the provided code?
People
Study Notes
UML Diagrams and Class Relationships
- UML (Unified Modeling Language) is used to visualize the design of a system.
- Abstract classes in UML are represented as a class with italics or a special notation.
- The given code describes an abstract class
People, which has properties forageandnameand an abstract methodprintInfo().
Class Hierarchy
-
Peopleis the superclass from which other classes derive. - Two classes inherit from
People:-
Studentclass has an additional propertygrade. -
Teacherclass includes an additional propertyexperience.
-
Key UML Representation
- The relationship depicted is a generalization relation, illustrated as an inheritance arrow pointing from
StudentandTeachertoPeople. - Subclasses must implement the abstract method
printInfo(), ensuring they provide specific information.
Importance of UML in Software Development
- Facilitates communication among developers by providing a clear structure.
- Captures system requirements and designs, aiding in the planning and documentation process.
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Description
Test your knowledge about UML diagrams and their relationships with classes in this flashcard quiz. Understand how to identify and represent different UML diagram types using various classes and their properties. This quiz is particularly useful for those studying object-oriented design.
