What is a pointer and does java support pointers?
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Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?
What are class types in java?
What is the meaning of nullable?
33. try { 34. // some code here 35. } catch (NullPointerException e1) { 36. System.out.print(”a”); 37. } catch (RuntimeException e2) { 38. System.out.print(”b”); 39. } finally { 40. System.out.print(”c”); 41. } What is the result if a NullPointerException occurs on line 34? 1 c 2 a 3 ab 4 ac
What is executor memory?
java is puerly object oriented or not ?
What is binary tree in java?
Can we use this () and super () in a method?
Explain the importance of finalize() method.
Why stringbuilder is not thread safe in java?
What is difference between fail-fast and fail-safe?
How do you find the maximum number from an array without comparing and sorting?