What do u mean by variable?

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Does java arraylist maintain insertion order?

0 Answers  

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how can i take the inputs from users in java program?

7 Answers   Wipro,

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How do you compare characters in java?

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What do you mean by composition in java?

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What are the problems faced by java programmers who don't use layout managers?

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How many bits does a boolean take?

1 Answers  

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Can inner class extend any class?

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Can we create our own wrapper class in java?

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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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when to for abstract class and when to go for interface

2 Answers  

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What are the different types of inner classes?

0 Answers  

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