Why set do not allow duplicates in java?
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As a developer what steps do you take to improve the performance?
how cani read a command line argument?(usingfile object).
In how many ways we can do exception handling in java?
Which package has light weight components in java programming?
What code optimizations techniques you follow in general practice?
2 Answers Accenture, TCS, Wipro,
In a container there are 5 components. I want to display the all the components names, how will you do that one?
What is the purpose of skeleton and stub?
what are the high-level thread states? : Java thread
What is a parameter used for?
State differences between C and Java?
0 Answers Deloitte, JPMorgan Chase,
Why we can not force Garbage Collection?
What is the difference between && and & in java?
Core Java 
