Returns the value of the specified section property, or the {@code defaultValue} if the section or
property do not exist.
@param sectionName the name of the section to add the name/value pair
@param propertyName the name of the property to add
@param defaultValue the default value to return if the section or property do not exist.
@return the value of the specified section property, or the {@code defaultValue} if the section or
property do not exist.
Returns the value of the specified section property, or the {@code defaultValue} if the section or property do not exist.
@param sectionName the name of the section to add the name/value pair @param propertyName the name of the property to add @param defaultValue the default value to return if the section or property do not exist. @return the value of the specified section property, or the {@code defaultValue} if the section or property do not exist.