Java Object Oriented Flashcards
1
Q
1 . Why is Java so popular?
A
A
2
Q
2 . What is platform independence?
A
A
3
Q
3 . What is bytecode?
A
A
4
Q
4 . Compare JDK vs JVM vs JRE
A
A
5
Q
5 . What are the important differences between C++ and Java?
A
A
6
Q
6 . What is the role for a classloader in Java?
A
A
7
Q
7 . What are Wrapper classes?
A
A
8
Q
8 . Why do we need Wrapper classes in Java?
A
A
9
Q
9 . What are the different ways of creating Wrapper class instances?
A
A
10
Q
10 . What are differences in the two ways of creating Wrapper classes?
A
A
11
Q
11 . What is auto boxing?
A
A
12
Q
12 . What are the advantages of auto boxing?
A
A
13
Q
13 . What is casting?
A
A
14
Q
14 . What is implicit casting?
A
A
15
Q
15 . What is explicit casting?
A
A