What does null mean in java?

0 Answers  

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Can we write any code after throw statement?

0 Answers  

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what is object type casting? give some example with related?

2 Answers   HP, SparkTG,

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java Api provided try catch finally ,try catch(its ok) but why try finally and exception occured at try then how the flow is?

1 Answers   Naaptol,

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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.

1 Answers   Huawei,

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Why hashmap is used in java?

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What about anonymous inner classes in java?

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Can we use static class instead of singleton?

0 Answers  

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what are the application of compiler and interpreter for source program

2 Answers  

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What are the differences between string and stringbuffer?

0 Answers  

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Is int a class in java?

0 Answers  

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class A { class B { psvm(String args[]) { } } } if the prg saved in A.java whats the o/p?

7 Answers   HCL, TCS,

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