Java Programming Questions
| 5. |
Why is Java not 100% pure OOP language? |
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- Java takes inspirations from C and C++.
- The native data types like 'char', 'int', 'float', and 'double' are straight pick from C, which is not an Object Oriented Language.
- Reasonably enough Java is not a 100% pure Object Oriented Language.
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| 6. |
What is the difference between Assignment and Initialization? |
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Assignment can be done as many times as desired whereas initialization can be done only once. |
| 7. |
What is Enumeration Interface? |
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- Enumeration interface defines the methods by which you can enumerate the elements in a collection of objects.
- In JAVA collection its now replaced by Iterator.
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| 8. |
What is a constructor in class? |
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- Constructor has the same name as the class in which it resides and from syntax point of view it looks similar to a method.
- Constructor is automatically called immediately after the object is created, before the new operator completes.
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Constructors have no return type, not even void.
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