| Other Core Java Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| How can you say HashMap is syncronized? | IBM | 13 |
| What is the % operator? | | 2 |
| what are the methods of an object class? | | 3 |
| Diff between C++ and java? | TCS | 8 |
| What is the difference between serialization and
deserialization? | ABC | 2 |
| What is Servlet? | | 8 |
| How will you convert an ArrayList to Arrays? | KPIT | 3 |
| How to eliminate duplicates from an array? | Wipro | 3 |
| What is update method and when it is called? | | 1 |
| What is the GregorianCalendar class? | HCL | 1 |
| when we write class.forName("any one class"); what happens
actually?what it will return?explain stepwise? | | 4 |
| What is the difference between Resultset and Rowset. | IBM | 5 |
| Difference between Applet & Application? | | 5 |
| Marker interface means , interface which has no methods.Then
what is the necessity of its usage.I read "it tells the
compiler that it should be treated differently ". "It is
used to store state of an object". But still am not
clear.Please explain clearly. | | 1 |
| where u use Abstraction and Interface in real time | Sonata | 2 |
| what is meaning of JIT? | | 4 |
| explain System.out.println() | CTS | 7 |
| Howmany number of objects we can store in an ArrayList. Is
there any limit? | TCS | 5 |
| What are wrapper classes? | Noah-Solutions | 6 |
| What is unicode? | | 2 |
| |
| For more Core Java Interview Questions Click Here |