What is connection class in java?
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In what type of containers, Border layout is a default layout?
Which collections are thread safe in java?
What are non-access modifiers?
What is the vector class in java programming?
Differences between external iteration and internal iteration?
What is the purpose of the runtime class in java programming?
we cannot create an object of interface but we can create a variable of it
what is multithreading?
What is the size of boolean variable?
what is the output ? Math.floor(-2.1) a)2 b)-2 c)-3.0 d)0
What is an immutable object?
Can we return null in java?