DCS1101 - Week 2 (Intro to CPP)

Take note of the words on the screen...

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You have 30 seconds

Open Ended

Write down how many you can catch!

Hotspot

Which part of the code tells the compiler that the program has been run successfully?

Open Ended

What do you think will happen if you don't add #include<iostream> at the top?

Multiple Select

Select all the correct statements about variables based on the lesson.

• A variable stores values used by the program

• A variable must have a name, type, and value

• A variable is used to display output to the user

• A variable can only store numbers

Multiple Choice

Which of the following is a valid C++ variable name?

• 1variable
• variable1
• variable-name
• variable!

Multiple Choice

Which variable name is valid in C++?

• student name

• studentName

• student-name

• student@name

Multiple Choice

A teacher is writing a program to take note of students. Which one is an appropriate variable name according to good programming practices?

• x

• a1

• totalStudents

• ts

Open Ended

What is a variable name you would write if you, the student, are storing the value of the total subjects taken in a course?

Multiple Choice

What is the result of 5 + 3 * 2?

• 9
• 11
• 10
• 8

Multiple Choice

What is the output of 7 % 3?

• 1
• 4
• 3
• 2

Multiple Choice

What is the value of 20 / 5 * 2?

• 8
• 4
• 10
• 6

Multiple Choice

What is the result of (6 + 4) / 2?

• 3
• 10
• 5
• 7

Multiple Choice

What is the main purpose of a program?

• The main purpose of a program is to create graphics and animations.
• The main purpose of a program is to store data in a database.
• The main purpose of a program is to manage user accounts and permissions.
• The main purpose of a program is to execute instructions to perform tasks or solve problems.

Multiple Choice

Which component is required to use cout in C++?

• return 0;

• int main()

• string

• #include <iostream>

Multiple Choice

What does using namespace std; allow us to do?

• Write slower code

• Avoid writing std:: before standard names

• Include libraries

• End the program

Multiple Choice

Which data type is best for storing a whole number?

• float
• boolean
• string
• integer

Multiple Choice

What does return 0; indicate in a C++ program?

• It indicates successful completion of the program.
• It represents a warning message.
• It signifies the start of the program.
• It indicates an error in the program.

Multiple Choice

Which is an example of good programming practice?

• Using single-letter variable names
• Hardcoding values in the code
• Ignoring code comments and documentation
• Using meaningful variable names