Flashcards in Constants, variables and data types Deck (19):

1

## What is a variable?

### A variable is a label for stored information that can change while the program is running

2

## What is a constant?

### A constant is label for stored information that cant change while the program is running

3

## Which data type stores whole numbers?

### Integer

4

## Which data type stores text?

### String

5

## Which data type only has two possible values?

### Boolean (true or false)

6

## Which data type can store a single letter (or number, symbol etc)

### Character (char)

7

## Which data type stores any numbers including fractions?

### Real (sometimes called float)

8

## Which data type would you use to store 15/4/12?

### Date/Time

9

## Which data type would you use to store 20:15?

### Date/Time

10

## Which data type would you use to store 4 September 2014 13:30 ?

### Date/Time

11

## What characters can you start a variable name with?

### letter or underscore

12

## What characters can you use in the main part of a variable name?

### letter, number, underscore

13

## True or false? if a is true and b is true, a AND b is...

### true

14

## If A is false and B is false then A AND B is...

### false

15

## if A is false and B is true then A and B is....

### false

16

## if a is true and b is true, a OR b is...

### true

17

## if a is true and b is false, a OR b is...

### true

18

## if a is false and b is false , a OR b is...

### false

19