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basics of C++ - revision for a test

Study Slideshow

What's wrong with this code?

Missing a semicolon after endl

What's wrong with this code?

Missing a semicolon after endl

What will this code output?

The result of a / 2 is: 7

What will this code output?

Name two basic variable types in C++.

string, int, float

Which variable type would you use to store the following: a person's name

string

Which variable type would you use to store the following: a person's age

int

Which variable type would you use to store the following: a person's height in meters

float

True or false: A float variable can store whole numbers.

True (though it is usually used for decimal values).

Fill in the blank: In C++, the ________ keyword is used to declare a variable that stores text.

string

Fill in the blanks to make this code work:

<iostream>, std, main

If you want to store the number 3.14, which data type would you use?

float

True or False: You must declare a variable before you use it in C++.

True.

Complete the sentence: The main() function is the ________ point of a C++ program.

starting

What will happen if you forget the return 0; statement in main()?

In most modern compilers, the program will still run, as it assumes return 0;, but it’s good practice to include it.

Complete the sentence: The ______ keyword moves the output to the next line

endl