String array - Study guides, Class notes & Summaries

What are the indexes for the first and last positions of an array called x? - x[0] and x[h-1] Immediately after instantiating a new array of primitives, what fills the array? What about an array of objects? - Primitive: default value fills the array (0 for int, 0.0 for double, false for boolean) Objects: null fills array What happens when you try to access an array element past the end of an array? - An exception of type ArrayIndexOutOfBoundsException is thrown Instantiate three arrays cal...

NABCEP PV ASSOCIATE EXAM QUESTIONS & ANSWERS 2023/2024 An off-grid installation has a 1HP pump that is on 10% of the time and a 20W light that is on 100% of the time. What is the monthly energy use? - ANSWER-68KWh 1HP = 746W 746W * 0.1 * 24hours * 30days = 53712Wh 20W * 24hrs * 30days = 14400Wh 14400 + 53712 = 68112Wh 68kWh What kind of ground faults do most inverters detect? - ANSWER-DC Inverters detect dc ground faults. AC ground faults are detected on the AC side of the inverter a...

Which operator should be used to determine if a number is evenly divisible by 5? A + B - C * D % % A car drove 200 miles using 10 gallons of fuel. Which operation should be used to compute the miles per gallon, which is 20? A Addition B Subtraction C Multiplication D Division Division Brainpower 0:04 / 0:15 A variable should hold a person's height in meters. Which data type should the variable be? A Integer B Float C String D Boolean Float A variabl...

COS1512 Assignment 3 2023 (DUE : 21 August 2023) 100% TRUSTED workings, explanations and solutions. For assistance call or whatsapp us on +25477 954 0132 . Question 1 Consider the following structure used to keep employee records: struct Employee { string firstName; string lastName; float salary; } Turn the employee record into a class type rather than a structure type. The employee record class should have private member variables for all the data. Include public member fun...

AQA A-level COMPUTER SCIENCE 7517/1 Paper 1 Version: 1.0 Final IB/G/Jun23/E10 7517/1 Monday 12 June 2023 Afternoon Time allowed: 2 hours 30 minutes Materials For this paper you must have: • a computer • a printer • appropriate software • the Electronic Answer Document • an electronic version and a hard copy of the Skeleton Program • an electronic version and a hard copy of the Preliminary Material. You must not use a calculator. Instructions • Type the informati...

COS1511-Exam-pack - Various COS1511 exams to practice on. Computer Systems: Fundamental Concepts (University of South Africa) lOMoARcPSD| SECTION A 20 MARKS (10 MULTIPLE CHOICE QUESTIONS, 2 marks each) Please answer this section on the mark-reading sheet that you received (not in your answer book). Choose one option for every question. QUESTION 1 Suppose the following declarations appear in a C++ program: float amount, forWaiter; char service; If the following function header is ...

What are the three tiers in GW application architecture - Data, application, presentation (or user interface/web clients) In which tier are the following used? PCF Files, Gosu, and Data model entities? - Presentation, application, and data respectively For each of the following, identify if it is stored as a database table, as a table column, or not stored in the database at all: a) An entity (such as ABContact) b) A physical data field (such as ABContact.CreateTime) c) A virtual data fi...

COS1512 Assignment 2 2023 (DUE : 6 July 2023) 100% TRUSTED workings, explanations and solutions. For assistance call or whatsapp us on +25477 954 0132 . Question 1 Write a program to determine the tuition fees for a student. The program should use two overloaded functions, each named calcFees, to determine the tuition fees for a student. Students who repeat a module pay a different fee for the modules which are repeated. The program should first ask if the student repeats any modules. I...

Program Consists of instructions executing one at a time. Input A program gets data, perhaps from a file, keyboard, touchscreen, network, etc. Brainpower 0:02 / 0:15 Process A programs performs computations on that data, such as adding two values like x + y. Output A programs puts that data somewhere, such as to a file, screen, network, etc. Computational thinking Creating a sequence of instructions to solve a problem. Algorithm A sequence of instruct...

WGU C859 PYTHON EXAM 50+ QUESTIONS AND ANSWERS COMPLETED 2023. 1. f1 = open("/my_path/my_", "r"): to open and read a file 2. f1 = open("/my_path/my_", "w"): to open and write a file (all previous material discarded) 3. f1 = open("/my_path/my_", "a"): to open and add to a file 4. (): read a file into a string 5. ("hello!"): writes to a file 6. ine(): reads next line 7. (): closes a file (must always close a file!) 8. with open("/my_file...etc) as f:: opens, allows work, ...