What is the purpose of the system class in java?

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Is it possible to use string in the switch case?

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What is Servlet?

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What is the difference between post and put?

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Difference between the String and StringBuffer classes?

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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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Is arraylist sorted in java?

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What is the difference between reader/writer and inputstream/output stream?

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Is null a keyword in java?

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What types of index data structures can you have in java?

0 Answers   Tech Mahindra,

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How does a try statement determine which catch clause should be used to handle an exception?

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What is static import in java?

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