CSC/ECE 517 Summer 2008/wiki1 6 jm: Difference between revisions
Jump to navigation
Jump to search
| Line 41: | Line 41: | ||
|<code>h["key3"] = "value3"</code> | |<code>h["key3"] = "value3"</code> | ||
| To Do | | To Do | ||
|- | |||
|'''Remove a Key - Value pair''' | |||
|<code>h.delete("key1")</code> | |||
|to do | |||
|- | |||
|'''Check if Key Exists''' | |||
|<code>h.key?("key1")</code> | |||
|to do | |||
{| | {| | ||
Revision as of 16:58, 6 June 2008
Introduction
Both Ruby and Java support arrays and hash tables
Hashes in Ruby
Arrays in Ruby
Creating Arrays in Ruby
Creating an array in Ruby is as simple as
a = []
Initializing an Array in Ruby
a = ["one",45,"hello"]
Hashes in Java
Arrays in Java
| Hashtable Function | Ruby | Java | |
| Create | h = {} or
|
TO DO
| |
| Initialize | h = {"key1" => "value1", "key2" => "value2" }
|
TO DO | |
| Add Key to Existing Hashtable | h["key3"] = "value3"
|
To Do | |
| Remove a Key - Value pair | h.delete("key1")
|
to do | |
| Check if Key Exists | h.key?("key1")
|
to do
|