Stacks and Queues

Question 1

how do you initiate a stack?

Answer 1

Stack stackname = new Stack();

Question 2

how do you add, remove, and peek from a stack?

Answer 2

stackname. push(“Value”);
stackname. pop();
stackname. peek();
stackname. search(“Value”); //to find index of an element

Question 3

how do you initiate a queue?

Answer 3

Queue queuename = new LinkedList();

Question 4

how do you add, remove, and peek from a queue?

Answer 4

queuename. offer(“Value”);
queuename. poll();
queuename. peek();