1. Chapter Four Common facilities of procedural languages

2. How do different programming languages differ and what do they have in common

3. Assignment Operator = for assigning variables A = hello; B= World; C= a + b; For math calculation we use ==

4. Arithmetic Operations + - / * % Relational Operations =', '>', ' '

5. Boolean Operators 'AND', 'OR', 'NOT'; also known as Logical Operators

6. Boolean Operators

8. Operator order

9. Concatenating Basically, it means taking two strings and putting them together. For example: 'FullName = FirstName + Surname' would be of little use whereas 'FullName = FirstName + ' ' + Surname' is moststrings

10. Extracting parts of a string Most programming languages also have the availability to extract parts of a string from either the left, right of middle Hello World Left LEFT(, ). If the string was 'Hello World!' and then the integer value was 4 then the extract would be 'Hell'.

11. Right RIGHT(, ). If the string was 'Hello World!' and then the integer value was 4 then the extract would be 'rld!'.

12. Middle MID(,, ). If the string was 'Hello World!' and then the integer values were 4 then the extract would be 'o Wo'.

13. Also programming languages are able to: Locating Finding the length of a string Dealing with character sets: Converting from characters into integer Comparing strings: 0-9, a-z, A-Z

14. Facilities Command Line A command line allows the user to type in what they want thus there is no need for clickable items just one function that allows the entry of text data. Notpad++ GUI: Alice Greenfoot?