More selection structure

Another selection structure which achieves multiple branching is the switch() structure. This structure is a multiple if() and the broadest use it to create a menu structure for a program.

switch(integer variable)
{
  case C1: //Write statements to do if variable == C1
           break;

  case C2: //Write statements to do if variable == C2
           break;

  default: //Write statements to do if variable is other values
}

Things to note for a switch() structure:

• it can only evaluate an integer value (including char)
  
• values for the cases are exact values and it does not allow range of values (e.g. C1 > 20)
• all cases should have a break statement to prevent statements from falling through