Answered: How do you use "else if" and "else"?

Engineering

Computer Science

How do you use "else if" and "else"?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Refer to the following statement to answer parts (a) through (c) below, The professor is intelligent and an overachiever, or not an overachiever a. Write the statement in symbolic form Assign letters to simple statements that are not negated Choose the correct answer below OA. let p=The professor is intelligent and letq= The professor is not an overachiever, (p A q)v OB. let p= The professor is intelligent and let q= The professor is not an overachiever (p v q) A OC. let p= The professor is intelligent and let q= The professor is an overachiever (p A q) v -q O D. letp=The professor is intelligent and let q= The professor is an overachiever, (p v q) ^ -9 b. Construct a truth table for the symbolic statement in part (a) PAq (pAq) v -q T.
INTRODUCTION: In chemistry, neutralization occurs when an acid and a base react with each other. Most chemistry occurs in water (that is, is aqueous); under these circumstances, neutralization leads to water with no excess hydrogen or hydroxide ions present. Neutralization can most simply be expressed as acid + base → salt + water For example, HCl + NaOH → NaCl + H2O The stoichiometry of the reaction depends on how much hydrogen ion and hydroxide ion each reactant provides. In this case, each molecule of HCl provides one hydrogen ion, and each molecule of NaOH provides one hydroxide ion. The one hydrogen and one hydroxide ion combine to form one molecule of water. For this assignment, suppose that you have been presented with several solutions of hydrochloric acid (HCl) and some of the most popular bases for wastewater treatment: magnesium hydroxide (Mg(OH)2), calcium carbonate (CaCO3), calcium oxide (CaO), sodium bicarbonate (NaHCO3), sodium hydroxide (NaOH), and ammonia…
need help on the wrong part. (red x mark)
Do not use regular expressions in your solution for this exercise. Write a program that checks to see if an input password is valid or not. In this exercise, a valid password has the following characteristics: It contains at least eight characters. It contains at most 12 characters. It contains only alphabetic characters, digits and the underscore (‘_’) character. It does not start with a digit. It has a mix of upper-case and lower-case characters. Your class must contain the following method: public static String checkPassword(String input) This method receives a possible password as input and returns only the String“OK” if the password is valid. If the password is not valid then you can return the reason(s) for that as the return value. This is not a part of the requirements, however, and you don’t need to do that. You can simply return null for an invalid password.
USE R STUDIO TO SOLVE: Assume that I am a manager of an ice-cream business. I have four sales agents: Ashley, Jude, Leslie and Skylar. They each work six days per week and have access to a portable kiosk to sell my ice-cream. On the days they work, they sell my ice cream at one of three permitted locations: the beach, the market or the park. My strategy so far has been to randomly determine the six days that each agent works and to randomly assign the location for each agent daily. I now want to know if randomly determining the days and randomly assigning the location is the right decision to maximise sales revenue. To help answer this, I collected some data over a 20 week period. However, I don't know what to do with the data. For this reason, I have recruited you as a consultant in data analytics to: i. help me make sense of the data; ii. provide evidence that randomly assigning workdays and locations is a suboptimal strategy; iii. to advise me on a more optimal…
8. Let ?, ?, and ? be true, false and false, respectively. Determine the truth value of the following? a.) (? → ?) ∧∼ ? b.) ? ↔ (? ∧ ?)
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Input Output Explanation 4 11 There are 4 test cases without round 1+2*3+4 1000000006 brackets. 1*2-3 123 • Case 1: It is straightforward to evaluate that 1+2 x 3 +4 = 123 invalid +-* 11. • Case 2:1 x 2 – 3 = -1. In modular arithmetic, -1 is 1 000 000 006 (mod 1 000 000 007). • Case 3: By definition E → integer. Therefore 123 evaluates to 123. • Case 4: Each operator must have operands. This expression is invalid. 4 9 There are 4 test cases with round (1+2)*3 invalid brackets. () invalid () 100 (((1))) • Case 1: It is straightforward to evaluate that (1+ 2) × 3 = 9. • Case 2: Empty brackets are not 1 allowed by definition. • Case 3: Not only empty brackets are disallowed, but also there misses an operator between () and 100. • Case 4: By definition E (E). Therefore E → (E) → ((E)) → (((E))) → (((1))), which evaluates to 1.
Only correct answer else you get downvote. The races in which three applicants took part have as of late finished. The primary applicant got a votes, the subsequent one got b casts a ballot, the third one got c votes. For every up-and-comer, take care of the accompanying issue: the number of votes ought to be added to this applicant so he wins the political decision (for example the number of decisions in favor of this competitor was completely more prominent than the number of decisions in favor of some other applicant) Kindly note that for every applicant it is important to take care of this issue freely, for example the additional decisions in favor of any applicant don't influence the computations while finding the solution for the other two competitors. Input :The primary line contains one integer t (1≤t≤104) — the number of experiments. Then, at that point, t experiments follow. Each experiment comprises of one line containing three integers a, b, and c (0≤a,b,c≤109). Output…
Rohan is playing a game in his class in which he takes heights of two persons and then find the greatest common divisor of those heights. You have to help rohan by writing c code using recursion
Recall our discussion in class about vacuous truth. (“All of the pages in my hand are green.") Of the following statements, which one(s) is/are vacuously true? [Important note: The question is not asking you to find all of the true statements, but to identify only the ones that are vacuously true.] (a) For all integers n, if n 16, then n 2 4 (d) For all integers n, if 5n > n, then n 20 (e) For all positive integers m, if m < 5, then m² < 25 (f) For all positive integers m, if m < 1, then m2 <1
Translate into symbols. Let p = “I am studying Java”, q = “It is sunny”, r = “I am at the beach” a. If I am at the beach, then I am not studying Java. b. Either I am studying Java or it is sunny, but not both. c. If I am studying Java and it is not sunny, then I am not at the beach.