| Other Core Java Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| Keywords in Exceptions? | | 1 |
| What is more advisable to create a thread, by implementing
a Runnable interface or by extending Thread class? | | 5 |
| what is request dispatcher and how does it work? | CTS | 1 |
| who was the founder of java
| HCL | 8 |
| Can Applet have constructors? | | 3 |
| Difference between the paint() and repaint() methods? | | 1 |
| How to make a class immutable? | Bosch | 6 |
| What is run-time class and system class? what is their
purpose? | | 1 |
| how can u handle run time exception in java? explain with
brief explanation with examples? | CTS | 2 |
| Is 'sizeof' a keyword? | | 5 |
| In the first round, there are 30 aptitude and 30 java
questions. We are suppose to finish both the papers within
60 minutes.
I cleared this round.
Next was test for programming skills.
In this section, Some 7 n's were asked.
1.
What is the difference b/w sleep(1000) and wait(1000)
2.
what is the diff b/w static block and static function?
3.
Write a program to validate IP address using string
tokenizer.
4.
Write a program to create singleton class
5.
write a function to reverse the string
6.
Write a prog to print prime nos upto n. EX: If n=9, It shld
print 1,2,3,5,7
7. One program on collections- Write a program to print no.
of times a number is repeating in an array.
EX- {1,3,1,2,5,7,3,7,34,3,8,3}
It should print: 1- 2 times
3- 4 times and so on
7. Write a func to print fibonocci series
After this I had technical interview, which went on for.
60 mins or so. There were qn's about multi threading,
Exception handling and collection classes.
Knowledge about collections was very important for the
post I was interviewed for. | Huawei | 1 |
| Describe inheritance as applied to java? | | 4 |
| Hi Friends, can u give me Real Time example for interface
and abstract class.(With Banking Example) | | 1 |
| what are class,constructor and primitive data types? | | 2 |
| How are this() and super() used with constructors? | | 4 |
| There are 2 classes, 1 LandAnimal and another WaterAnimal.
There is another class Animal which wants to have the
properties of both LandAnimal and WaterAnimal. How will you
design this situation? | KPIT | 3 |
| Does garbage collection guarantee that a program will not
run out of memory? | | 1 |
| What is the order of method invocation in an Applet? | | 1 |
| Can we declare static variables in JSP page. | TCS | 3 |
| what is difference between abstraction and interface?
| FIC | 6 |
| |
| For more Core Java Interview Questions Click Here |
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