| Other Core Java Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| Why Java is not purely object oriented? | Persistent | 21 |
| Difference between JDK, JRE, JVM | Oracle | 5 |
| How to call static method? | Epoch | 3 |
| Can a Byte object be cast to a double value? | | 2 |
| What are the OOPS concepts in Java ? | Satyam | 3 |
| What is the use of an interface? | | 3 |
| Features of Java? | | 4 |
| If set accepts only one argument then how can it compare
two objects to avoid duplicates | | 3 |
| Can an object be garbage collected while it is still
reachable? | | 2 |
| What is casting? | | 3 |
| Difference between abstract class and Interfaces? | Sai-Softech | 5 |
| How many objects are created for a singleton class | Ness-Technologies | 4 |
| define System.out.println(); what is the meaning! | | 8 |
| What is the purpose of the finally clause? | | 3 |
| Can a lock be acquired on a class? | | 2 |
| What is an array and a vector? How they different from each
other? | | 3 |
| Catch(Exception e){
}
in that what is Exception and purpose of that in that place
exactly? | | 3 |
| What is the use join() in Threads ? | HCL | 4 |
| What is System class and its purpose? | | 2 |
| When you say String is immutable, what do you mean by that?
Say I have String s = "Ness"
s= s+"Technologies";
What will happen? If the value gets appended, then what is
the meaning of immutable here? | Ness-Technologies | 4 |
| |
| For more Core Java Interview Questions Click Here |
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