What is difference between encapsulation and abstraction?

574

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Difference between encapsulation and data hiding ?

513

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Difference between abstraction and implementation hiding ?

585

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What are the features of encapsulation ?

563

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Difference between composition and inheritance ?

552

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

570

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Can we reduce the visibility of the inherited or overridden method ?

612

---

Does a class inherit the constructor of its super class?

520

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What is the difference between factory and strategy design pattern?

558

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Can we make the reference instance non static?

549

---

Give me example of observer design pattern?

634

---

What design pattern wrapper classes implement?

619

---

What is the difference between builder and composite?

618

---

Shall we use abstract classes or interfaces in policy / strategy design pattern?

605

---

What is the difference between factory and builder design pattern?

509

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