Syntax

Question 1

How do you add a comment to your code?

Answer 1

With ‘//’ you can add a comment

Question 1

Where must an escape sequence be located?

Answer 1

Within the double quote of a string

Question 2

How do you add a block comment to your code?

Answer 2

With ‘/*’ and a closing */ you can add a block comment

Question 3

What are some rules to variable naming?

Answer 3

1. Names can include upper or lower case letters, numbers, and underscores
2. The first character must be a letter
3. No keywords are allowed as the full name

Question 4

What does the ‘int’ variable type hold?

Answer 4

Whole numbers from -2.1 billion to 2.1 billion

Question 5

What does the ‘float’ variable type hold?

Answer 5

Numbers with possible decimal value (up to 6 decimal places)

Question 6

What does the ‘double’ variable type hold?

Answer 6

Numbers with possible decimal value (up to 15 decimal places)

Question 7

What does the ‘char’ variable type hold?

Answer 7

One letter or number

Question 8

In printf double quotes what does %d and %i display?

Answer 8

Integers

Question 9

In printf double quotes what does %f display?

Answer 9

Double or Float

Question 10

In printf double quotes what does %c display?

Answer 10

Character

Question 11

In printf double quotes what does \n cause?

Answer 11

A newline

Question 12

In printf double quotes what does \r cause?

Answer 12

A carriage return

Question 13

In printf double quotes what does \t cause?

Answer 13

A tab

Question 14

What does a character need around it if you are declaring the value of a variable on the same line?

Answer 14

Single quotes: ‘a’

Question 15

What is more accurate a float or double?

Answer 15

Double

Question 16

When can variables be declared?

Answer 16

On the same line as they are named or any future point in the code

Question 17

How do you create a constant?

Answer 17

Before the data type, add ‘const’ and be sure to set the name of your constant to be all upper case. (Best practice)