Conditional Statements

Types

• if(logical test){ block of code}
• if(logical test){
  Block of code
  }else{
  Alternate block of code
  }
• if(logical test){
  Block of code
  }elseif(alternate logical test){
  Block of code
  }else{
  Catch all block of code
  }

1 TRUE: a and b = 13

2 FALSE: a and b equals 13

3 FALSE: a and b equals 13

Switch statement

• switch (n) {
  case label1:
  code to be executed if n=label1;
  break;
  case label2:
  code to be executed if n=label2;
  break;
  case label3:
  code to be executed if n=label3;
  break;
  ...
  default:
  code to be executed if n is different from all labels;
  }

Simple if statements

The value of a is less than b

Check the existance of a variable

The variable c does not exist or is not set.