| Other Core Java Interview Questions |
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| Question | Asked @ | Answers |
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| what is wrapper class and its uses? | | 2 |
| What is deadlock and how to avoid this? | | 2 |
| what is unreachable code problem in multiple catch statements | | 2 |
| Hi, well i am unable to understand that why it is mandatory
to have same hashcode, if two objects are same?
Thanks in advance. | | 5 |
| Does 'true' and 'false' are keywords? | | 5 |
| How to synchonise HashMap | IBM | 3 |
| I have a Arraylist object, it has duplecate values also. Now
question is i want delete duplecate data in that objet with
out using Set?
| Aricent | 5 |
| what are Checked & Unchecked exceptions ? | | 2 |
| when a servlet sends request for first time it uses the
follwing methods
a)init
b)doget()
c)dopost()
d)service | Accenture | 2 |
| Explain difference between final, finally and finalize? | | 2 |
| what is Dictionary? and what purpose it is used for? | | 2 |
| Difference String and String Buffer
| | 3 |
| what are depricated methods in threads and explain the
lifecycle methods | | 5 |
| What are packages and name a few? | | 4 |
| what is meant by string pooling? | Wipro | 6 |
| I have a String s = java; What is the output when I say
s.replaceAll('j', 'k'); Also what is the value of s after
replacing? | KPIT | 5 |
| Explain the difference between the Boolean & operator and
the && operator? | | 1 |
| what are the methods of an object class? | | 3 |
| Hey buddy.. can you please tell me about the use of marker
interface? And is there any link between marker interface
and factory methods?
Thanks in advance. | | 2 |
| What is multiple inheritance & can we implement it in java? | Satyam | 4 |
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