How do you add an arraylist to an array in java?
Differentiate between stringbuffer and string?
Does 'true' and 'false' are keywords?
What is complexity in java?
What is singleton service?
What is the difference between char and char *?
How will you measure that int takes up only 32 bits in memory?
Difference between method overloading and method overriding in java ?
What are methods in java?
Which is illegal identifier in java?
What is the difference between C++ & Java?
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What are the performance implications of interfaces over abstract classes?
When we r go to abstract class and when we go to Interface? i have confusion this question while in interview plz clarify