1-3) Use a stack or queue library class, as appropriate, to: 1. check the nesting of parentheses, or braces in a Java source file 2. check the nesting of tags, such as htm,/htm>,p,/p etc., in an HTML file. 3. implement a reverse Polish notation calculator. 4. Write a method that takes integer-stack and integer parameters s and n, and returns the value of the nth item from the top of s, leaving the stack intact. 5. Write a program that reads a Java program and outputs a file with all method definitions removed. To accomplish this, you must use a stack