what is the basic difference between stack and queue?

Question

What is the basic difference between stack and queue??

Please help me i am unable to find the difference.

How do you differentiate a stack a

Answer 1

Stacks a considered a vertical collection. First understand that a collection is an OBJECT that gathers and organizes other smaller OBJECTS. These smaller OBJECTS are commonly referred to as Elements. These elements are "Pushed" on the stack in an A B C order where A is first and C is last. vertically it would look like this: 3rd element added) C 2nd element added) B 1st element added) A

Notice that the "A" which was first added to the stack is on the bottom. If you want to remove the "A" from the stack you first have to remove "C", then "B", and then finally your target element "A". The stack requires a LIFO approach while dealing with the complexities of a stack.(Last In First Out) When removing an element from a stack, the correct syntax is pop. we don't remove an element off a stack we "pop" it off.

Recall that "A" was the first element pushed on to the stack and "C" was the last item Pushed on the stack. Should you decide that you would like to see what is on bottom the stack, being the 3 elements are on the stack ordered A being the first B being the second and C being the third element, the top would have to be popped off then the second element added in order to view the bottom of the stack.