appInventor presentation of data types; lists, variables and daatbases

1. AppInventor betounsi

3. DataData

4. Data Source
1 2 3
Messenger
User
Images
text
Programmer
Phone data
other

5. DataData Types

6. Data Types
Strings
Example: “bonjour” operations : length, uppercase …
Example: 0…9 operations: + - * /
Numbers
Boolean
Example: true Or False

7. DataVariables

8. Variables
Your subtitle goes here
Variables are so important, to store data in it .
 We can store data in variables
 Variables data vary – they can be changed
 There exists 2 types of variables
IDEA
Global variable
Local variable

9. DataLists

10. DataData base

11. Local & Global variable
Your subtitle goes here
Local variable VS Global variables
When we use Global variables ?
How could we use global variables ?
How we define a global variable ?
How could we use local variables ?
When we use local variables ?
How we define a local variable ?