class Table

Base class: Object

Inherited classes: Empty

Description: represents a table of objects, which are held as pairs of key and value.

null(): Clears the table - removes all elements.
copy(): Returns a deep copy of the table
get(): Retunes the value that corresponds the given key in the table, and null if the key does not exist
has_key(): Returns true if the given parameter exists as key in the table and false otherwise
has_value(): Returns true if the given parameter exists as value in the table and false otherwise
keys(): Returns a list of keys of this table
length(): Returns the table length
pairs(): Returns two lists: list of keys in the table, and list of the corresponding values
pop(): Pops and returns the first pair from the table
read(): Reads the table content from the file which its name is given as a parameter in text mode
null(): Removes from this table the given key and its corresponding value from the table
update(): Updates the current table elements by the given table: for each pair in the given table, if the key exists in the current table update its value, otherwise add this pair.
null(): Returns the value list of this table by their key order.
write(): Writes the table content into the file which its name is given as a parameter in text mode