GCSE Computing/Programming

Starter The following examples fit the structure of GCSE Computing The code has been written in VB(.net) and C#(.net) In c# // and in VB ' are comments and are ignored by the compiler. They are there to help you. Programming Language Rules Every programming language has its rules. Its the main difference between them. A lot of them have some of the same rules. C# must be used at the end of each line of code (to continue the line to the next line don't use the ;) {} must be used to enclose code VB To continue the line to the next line use _ The code encloses vary Declaring a variable C# //(type e.g. int or string) (name e.g. i); int i; //integer called i (instead of VBs optional as ... C# uses type object for any type) VB dim i as integer //integer called i (as integer optional) IF Conditions C# if (Condition e.g. 1=1) { //Do something if true }else{ //Do something if false } VB if Condition e.g. 1=1 then 'Do something if true else 'Do something if false end if Loops For Next C# int i; //Declare i For (i=0; i<10, i++) { //i is an integer variable and the for checks if i = 10 every loop. If not does the process within then adds 1 to i. } VB For i As Integer = 1 To 10 'i is an integer variable and the for checks if i = 10 every loop. If not does the process within then adds 1 to i. Next i While C# int i; While(i<10) //Checks if i less than 10 { //Loops till i = 10 i++; //Adds 1 to i } VB dim i While i<10 'Checks if i less than 10 'Loops till i = 10 i+=1 'Adds 1 to i End While Repeat(loop) C# While(true) { //Does this for as long as the program is open } VB Do 'Does this for as long as the program is open Loop