Study guides, Class notes & Summaries

An exception handler is a piece of code that is written using the try/except statement: T/F - True If a file with the specified name already exists when the file is opened and the file is opened in 'w' mode, then an alert will appear on the screen: T/F - False If the last line in a file is not terminated with n, the readline method will return the line without n: T/F - True When a piece of data is read from a file, it is copied from the file into the program: T/F - False Whic...

1. Which of the following is correct about Python? a. Python is a high-level, interpreted, interactive and object-oriented scripting language. b. Python is designed to be highly readable. c. It uses English keywords frequently where as other languages use punctuation, and it has fewer syntactical constructions than other languages. d. All of the above - d. All of the above. 2. Is Python case sensitive when dealing with identifiers? a. yes b. no c. it depends on context d. it depends...

Which of the following statements is true about comments in coding? - Comments are a form of communication with other programmers (including yourself) In the following line of Python code, what is the argument to the input function? user_status = input("How are you today?") - "How are you today?" Which symbol is used to assign a value to a variable in Python? - = Which of the following is not a valid variable name in Python? - my_2_cents In Python, whole numbers like -3, 5 or 11 are s...

Booleans can only be -true false -numbers -letters - True and False What symbol would you use to see if two things are equal to each other? > == = != - == What letter do we put in front of a String if we want to put variables in it? -f -s -j -x - f Which of the following is an Int? -hello -43 -43.3 - 43 it is a whole number Which of the following is not a string? -'Hello' -43 -"Hello" - 43 It has no quotes around it To use the Random module, what must we include a...

False - True or False: Computer science is the study of computers CPU - The "brain" of the computer is the RAM (Random Access Memory) - Main memory is also called main memory - All information that a computer is currently working on is stored in Syntax - _______ of a language is its form Semantics - _______ of a language is its meaning Compiler - A complex computer program that takes another program written in a high-level language and translates it into an equivalent program in the ma...

1. The sys module is used to perform which function? - Gives the user access to display and process system information 2. Which argument is used in an open command when one wants to open a file but not make changes to the file? - r (read) 3. Select the correct code entry from the drop-down in the code sample that will complete the datetime function. - import datetime 4. Which code entry, when used with the random module, can be used to generate a random number between one and ten? - r...

Output file - a file that data is written to Input file - a file that data is read from Three steps when a program uses a file - Open the file Process the file Close the file Text file - contains data that has been encoded as text Binary file - contains data that has not been converted to text Sequential access - file read sequentially from beginning to end, can't skip ahead Direct access - can jump directly to any piece of data in the file Filename extensions - short sequences of char...

A(n) __________ program translates a high-level language program into a separate machine language program. translator assembler compiler utility - compiler The rules that must be followed when writing a program are called __________. operators punctuation syntax key words - syntax The __________ translates an assembly language program to a machine language program. assembler translator compiler interpreter - assembler Computers can only execute programs that are written...

What is computational thinking? - 1. Understand the problem 2. Create a strategy for solving the problem 3. Express the solution using code Algorithm - A sequence of well-defined instructions a computer can execute to perform calculations or solve problems. Code - A set of instruction to a computer to carry out a specific task Program - A complete piece of code that the computer executed to achieve a desired objective Python - A widely used, general-purpose programming language, e...

intro-2-1: What is the most important skill for a computer scientist? A. To think like a computer. B. To be able to write code really well. C. To be able to solve problems. D. To be really good at math. - C. To be able to solve problems. intro-2-2: An algorithm is: A. A solution to a problem that can be solved by a computer. B. A step by step list of instructions that if followed exactly will solve the problem under consideration. C. A series of instructions implemented in a programming ...