2.2 - Problem solving and programming

Intergrated development environment. Software enables you to enter/edit/interpret + run your programs.

• Set a breakpoint in a program; causes program to stop on that line. • Set a watch on a variable so that its value is displayed each time it changes. • Step through a program one line at a time.

Helps you find logic errors in a program.

• Adding line numbers. • Automatically indenting code. • Auto-completing commands. • Commenting/uncommenting a region.

Syntax errors will be reported.

They may be logic errors.

A sequence of instructions that can be follwed to solve a problem.

• Input. • Process. • Output.

• Writes intructions in statements that are between English + programing languages. • They are guidelines but no strict rules. • Aid thinking out steps needed before starting to code. • Makes coding easier.

To assign

Used for common arithmetic.

A name that points to a memory location.

Assiging a value to the memory location e.g. Start score = 0 score = score + 1 End

A single instruction Programs have a series of instructions.

• Don’t need to follow a specific structure or syntax of a language. • Easy to understand. • It is easy and quick to convert to a programming language.

It controls how statements in a program are executed.

• Sequence • Selection • Iteration

It is a named container to store values which can change at any point during the program. It is held by the computer in a memory location.

Used to set data into the computer program. It is an inbuilt function.

• line of code, one after the other. • Group of statements executed once in the order they appear.

Integer

String.

Character

Programs have sets of instructions that are carried out one after another. Sometimes more than 1 path to follow. So a decision needs to be made -> this is the selection.