Answer Questions 1 and 2 please they are part of one question. Also write one program/lab. Use a println() to answer the questions. and show the textbox at the bottom

Three more calls to pop would remove Jill. Jer, and Jim, leaving the stack cmpty v A stack of strings after (a) push adds Jim; (b) push adds Jess, (c) push adds Jul (d) push adds Jame: (e) push adds Joe (f) pop retrieves and In mathematics, an algebraic expression is composed of operands that are variables or constans and operators, such as + and *. We will use the Java notation +, -, *, and / to indicate ad the warning that Java has no operator for exponentiation; in Java is the exclusive-or operate tion, subtraction, multiplication, and division. We will use to indicate exponentiation, weil the+ in a + b is a binary operator. The operators + and -- can also be unary operators Operators generally have two operands, and so are called binary operators. For exam 158 CHAPTER 3 Stacks quent call to either pop or pook would throw an EmptyStackexception FIGURE 5.2 removes Joe: () pop retrieves and removes Jane Joe Jane Joe Jane Janie Jane Jill Jill Jess Jess Jess Jess Jess Jim Jess Jim Jim Jim Jim Jim Jim (g) (e) (d) (c) (b) (a) Security Note: Design guidelines Use preconditions and postconditions to document assumptions. Do not trust that a client will use public methods correctly. Avoid ambiguous return values. Prefer throwing exceptions instead of returning values to signal a problem. ? EU Question 1 After the following statements execute, what string is at the top of the stack and what string is at the bottom? Stackinterface stringStack = new OurStack(): stringStack.push("Jim"); stringStack.push("Jazmin"): stringStack.pop(): stringStack.push("Sophia"): stringStack.push("Tia"): stringStack.pop(): Question 2 Consider the stack that was created in Question 1, and define a new empty stack nameStack. a. Write a loop that pops the strings from stringStack and pushes them onto nameStack b. Describe the contents of the stacks stringStack and nameStack when the loop that you just wrote completes its execution. Using a Stack to Process Algebraic Expressions 5.5 they have one operand. For example, the minus sign in -5 is a unary operator. wel