Question

Which collection class allows you to grow or shrink its size and provides indexed access to its elements, but whose methods are not synchronized

Answer 1

Cylinder is basically a shape, which has two circular ends parallel to each other and if the middle part of it is laid flat, then it essentially becomes a rectangle.

We come across various cylindrical shaped objects in our daily life.

Some of these include pipes, pens, candles, test tubes, cans, and electric poles etc.