If you want to learn java or want to build a career in it or you are already a java developer then these JAVA Interview Questions with Answers will help you a lot.This is a series of questions and answers from beginner level to expert level and here are first 15 Questions and Answers.
- What's Java?
- What does a well-written OO program look like?
- Can you have virtual functions in Java?
- Jack developed a program by using a Map container to hold key/value pairs. He wanted to make a change to the map. He decided to make a clone of the map in order to save the original data on side. What do you think of it? ?
- What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?
- What is NullPointerException and how to handle it?
- An application needs to load a library before it starts to run, how to code??
- How could Java classes direct program messages to the system console, but error messages, say to a file?
- What's the difference between an interface and an abstract class?
- Name the containers which uses Border Layout as their default layout?
- What do you understand by Synchronization?
- What is Collection API?
- Is Iterator a Class or Interface? What is its use?
- What is similarities/difference between an Abstract class and Interface?
- How to define an Abstract class?
- How to define an Interface?
- For Answers Click here
Thanks for the info
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