Programming

Programming

1. Variables

   • A named storage location that contains a value that can change during the execution of a program.
     • Constant
     • Assignment
       • sets and re-sets the value stored in he storage location.
     • Casting
       • Taking an object of one particular type and "turning it into" another object type.

2. Data types

   • A data type is a form in which data is stored. Determines what kind of actions we can perform on that information of data.
     • Boolean
       • This has two values only, true and false.
     • Character
       • This is a single letter, number or symbol.
     • String
       • This is used for text, and can include any character.
     • Integer
       • There are whole numbers only.
     • Real
       • These are numbers that can have a decimal part as well.

3. Sequence

   • The order in which a set of instructions is carried out in an algorithm.

4. Selection

   • A way of creating multiple paths and decisions in an algorithm.

5. Iteration

   • A way of repeating a set of instructions in an algorithm,
     • Condition
       • WHILE loop- used to repeat a block of code several times.
     • Count conrolled
       • FOR loop- Used when you want to repeat a block of code for a set number of times.

6. Arrays

   • An array is an ordered set of values of the same data type.

7. Operators

   • Are characters that represent an action.