CBSE NET JUNE 2012 PAPER II
Q. The postfix expression AB + CD – * can be evaluated using a
(A) Stack
(B) Tree
(C) Queue
(D) Linked list
Ans: (A)
Explanation: Stack method is used to convert infix to postfix and postfix to infix. For example, see image, to learn how to convert infix to postfix using stack..