Java Object Oriented Flashcards

1
Q

1 . Why is Java so popular?

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2
Q

2 . What is platform independence?

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3
Q

3 . What is bytecode?

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4
Q

4 . Compare JDK vs JVM vs JRE

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5
Q

5 . What are the important differences between C++ and Java?

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6
Q

6 . What is the role for a classloader in Java?

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7
Q

7 . What are Wrapper classes?

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8
Q

8 . Why do we need Wrapper classes in Java?

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9
Q

9 . What are the different ways of creating Wrapper class instances?

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10
Q

10 . What are differences in the two ways of creating Wrapper classes?

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11
Q

11 . What is auto boxing?

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12
Q

12 . What are the advantages of auto boxing?

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13
Q

13 . What is casting?

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14
Q

14 . What is implicit casting?

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15
Q

15 . What is explicit casting?

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16
Q

what is integer cache?

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