How do you detect memory leaks?

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What is byte value?

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What is factor r?

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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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What is scope & storage allocation of static, local and register variables? Explain with an example.

0 Answers   IBS,

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Diff between Comparator and Comparable?

2 Answers   Aditya Birla,

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What is the flag in java?

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What are the drawbacks for singleton class?

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Which variable is the independent variable?

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How GC (Garbage Collector) knows the objects reference is unused.Whether GC removes the unused object Parmanently or it maintains something.

2 Answers  

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How do you find the independent variable?

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define polymorphism in java

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