Using Conditional Statements

Conditional statements can be used to take actions depending on whether various conditions evaluate to true or false. Grouping using parentheses ( and ) can be used for more complex conditions.

Table 1. Conditions
Condition	Description
Equals	expression = = expression
Not Equals	expression != expression
Greater Than	expression > expression
Greater Than or Equal To	expression >= expression
Less Than	expression < expression
Less Than or Equal To	expression <= expression
Not condition	!condition
And	condition && condition
Or	condition \|\| condition

If Statement

if(condition)
{ 
     actions to take if condition is true
}

Brackets are needed only if more than one statement is run after the "if."

If-Else If Statements

if(condition)
{ 
     actions to take if condition is true
}
else if(condition)
{
     actions to take if condition is true
}
else if...

if(SideLength != NaN)
{
   AreaOfPolygon=
   ((SideLength^2)*NumberOfSides)/
   (4*Tan(pi/NumberOfSides));
}
else if(Radius != NaN)
{
   AreaOfPolygon=
   (Radius^2)*NumberOfSides*Sin((2*pi)/NumberOfSides)/2;
}

One or more else if statements can be specified. Brackets are needed only if more than one statement is run after the "if-else- if-else."

Else-If Statement

if(condition)
{ 
   actions to take if condition is true
}
else if(condition)
{
   actions to take if condition is true
}
else if...
else
{
   actions to take if no conditions are met
}