Answer Posted / clark

Includes:

if(TRUE)

include the use case

Extends:

if(condition)

extend the use case

It's a matter of unconditional VS. conditional insertion

(Source : Uml 2002--The Unified Modeling Language
By Jean-Marc Jézéquel, Heinrich Hussmann, Stephen Cook)

Uses:

Defined in UML 1.1

Define modularity?

1081

---

Explain about polymorphism?

1078

---

Write about abstract base classes?

1031

---

What is the difference between an error and an exception?

1083

---

Whether static method can use nonstatic members?

964

---

Do structs support inheritance?

963

---

Why is class hierarchies managed in object-oriented programming?

979

---

If a class inherits an interface, what are the 2 options available for that class?

949

---

Describe the Diamond problem. Where does this problem occur?

934

---

What does the “abstract” keyword mean in front of a method? A class?

981

---

Why do we use oops concepts? What is its advantage?

1085

---

Are constructors inherited? Can a subclass call the parent's class constructor? When?

995

---

What is the difference between class inheritance and interface inheritance?

1098

---

What is the main advantage of using inheritance?

1077

---

What do you mean by data hiding?

1124

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