Access Modifiers The access modifiers of an item control the visibility (accessibility) of the item to other code. For example, you can call
public methods from anywhere, whereas private methods can be called only from other methods within the same type.
Attributes Attributes are used to provide additional information about elements within your program.
Constraints Paragraph The Constraints paragraph allows specification of properties of the type parameters of a generic type or method, and therefore
allows the use of methods or properties on data items whose type is specified as that parameter.
Method Signature The method signature enables you to specify passing parameters and returning items within the header of certain elements.
You must omit the procedure division header within the method if you use this signature.
Expressions An expression is classified as a primary expression, an arithmetic expression, or a conditional expression. Arithmetic and
conditional expressions are made up from a sequence of primary expressions separated by operators.