From 0 to 1 Data Structures & Algorithms in Java - Meet The Stack - Simple But Powerful

The video tutorial introduces the stack data structure, explaining its simplicity and power. It covers the main operations: push, pop, and peek, and their LIFO behavior. The tutorial includes a visualization of these operations and discusses additional operations like checking if the stack is empty or full. Finally, it explores implementation details, highlighting linked lists as an efficient choice for stack operations.

What is a stack primarily used for in data structures?

• Accessing elements randomly

• Sorting data elements

• Performing operations in a LIFO manner

• Storing data in a hierarchical order

Which of the following best describes the LIFO principle?

• Last In, Last Out

• First In, First Out

• First In, Last Out

• Last In, First Out

What operation would you use to add an element to the top of a stack?

• Insert

• Push

• Append

• Add

What does the 'pop' operation do in a stack?

• Adds an element to the stack

• Removes the bottom element of the stack

• Removes the top element of the stack

• Replaces the top element of the stack

Which operation allows you to view the top element of a stack without removing it?

• View

• Peek

• Pop

• Push

In a stack, what happens when you try to pop an element from an empty stack?

• The operation is ignored

• The operation succeeds with a null value

• The stack resets

• An exception is thrown

Why is a linked list preferred for implementing a stack?

• It uses less memory

• It allows fast operations at both ends

• It is easier to implement

• It provides fast operations at one end

What is a potential drawback of using an array to implement a stack?

• It is slower for operations at the beginning

• It requires more memory

• It cannot store different data types

• It is difficult to resize

What is the role of the head pointer in a linked list implementation of a stack?

• It points to the first element

• It points to the last element

• It points to the middle element

• It points to the largest element

What is the main advantage of using a stack in programming?

• It allows random access to elements

• It simplifies memory management

• It supports FIFO operations

• It provides a structured way to manage function calls