Difference between association, composition and aggregation?

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What is parsing and its types?

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Define package 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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How to eliminate duplicates from an array?

6 Answers   ABC, AdMod, Adobe, College School Exams Tests, Patni, Wipro,

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When a lot of changes are required in data, which one should be a preference to be used? String or stringbuffer?

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What is ide with example?

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Does list maintain insertion order java?

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Suppose if we have variable ' I ' in run method, if I can create one or more thread each thread will occupy a separate copy or same variable will be shared?

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Can we declare array without size in java?

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What is a java lambda expression?

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What is anagram in java?

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