May 2024
Intermediate to advanced
368 pages
11h 3m
English
book
Object Oriented Programming Through Java by Pearson
by Ramesh Vasappanavara, Anand Vasappanavara, Gautam Vasappanavara
Content preview from Object Oriented Programming Through Java by Pearson
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Exercise Questions 2.25
4. Java was originally named as “OAK” by its inventors James Gosling and Patrik Naughton.
5. Extending/Deriving new classes from existing classes, containment through inner classes,
Extending through Inheritance mechanism.
6. Single, multi level , and hierarchical inheritance are allowed by Java . Java does not support
multiple inheritance.
7. A class with abstract method is called abstract class with keyword abstract. An abstract class
need not necessarily have abstract methods.
8. Interface is declared with keyword interface instead of usual keyword class. Interface can only
contain abstract methods. However, using keyword abstract for these methods is optional.
9. A class can extend to only one class but can implement ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.