Why we should I close a java.util.Scanner variable?
1129
Resource leak: 'in' is never closed
51852
Difference in System. exit(0) , System.exit(-1), System.exit(1 ) in Java
56756
When do you use varargs in Java?
68713
Why is it Valid to Concatenate Null Strings but not to Call "null.ToString()"?
85179
How does Java's System.exit() work with try/catch/finally blocks?
76841
When should one use final for method parameters and local variables?
150146
Final arguments in interface methods - what's the point?
641
Which overload will get selected for null in Java?
74336
String literals inside functions: automatic variables or allocated in heap?
153688
Where does the JVM store primitive variables?
112804
Java Interface Usage Guidelines -- Are getters and setters in an interface bad?
19198
Does assigning objects to null in Java impact garbage collection?
133210
Why isn't String.Empty a constant?
52963
When would you prefer to declare an exception rather than handling it in Java?
63708
return statement vs exit() in main()
118643
Validating input using java.util.Scanner
132398
What is null in Java?