| Other Core Java Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| For which statements we use a label? | Wipro | 3 |
| What is the smallest package in Java API? | | 4 |
| What is update method and when it is called? | | 1 |
| Can a Byte object be cast to a double value? | | 2 |
| can abstract class have constructor how can you achive
this ? | Fidelity | 3 |
| What is an enumeration class? | | 2 |
| Difference between abstract class and Interfaces? | Sai-Softech | 5 |
| What is the difference between throw and throws?
What is the similarity between try and throw? | | 2 |
| What will happen inside init() in servlet. my interviewer
asked servlet lifecycle. i said "once servlet is loaded in
to memory init() will be called which performs servlet
initialization " . Again interview asked what values will be
initialized . what is difference between init() and
init(ServletConfig config). | Infinite-Computer-Solutions | 2 |
| whats the purposr of using serialization? | | 6 |
| How are Java source code files named? | | 3 |
| Write program to print Hello World and print each character
address in that string and print how many times each
character is in that string?
Ex: H: 0 & 1
e:1 & 1
l :2,3,8 & 3
o:4,6 & 2
w:5 & 1
r: 7 & 1
d 9 & 1 | Huawei | 3 |
| What are access modifiers in Java ? | | 5 |
| what is mutability?which one is mutable String or StringBuffer?and why?give
examples of each which shows the mutability of each String or StringBuffer | | 2 |
| How will you convert an ArrayList to Arrays? | KPIT | 3 |
| what is difference between type 4 driver and type 1 driver? | CMC | 2 |
| Is there any need to import java.lang package? | Sun-Microsystems | 9 |
| Does a class inherit the constructor of its super class?if
it does, how can you hide that constructor? if it doesnot
how can you call it from the sub class? | | 1 |
| What is constructor and virtual function? | | 4 |
| How many times garbage collector will invoke an object?s
finalize() method? | | 4 |
| |
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