Erinevus lehekülje "JavaPython:Sõnastikud" redaktsioonide vahel

Redaktsioon: 30. jaanuar 2016, kell 07:42

Java vs Python

Pythoni sõnastikud on sarnased Java "map"-idele.

Java

Python

HashMap<String, String> phoneBook =

                       new HashMap<String, String>();

phoneBook.put("Mike", "555-1111"); phoneBook.put("Lucy", "555-2222"); phoneBook.put("Jack", "555-3333");

//iterate over HashMap Map<String, String> map = new HashMap<String, String>(); for (Map.Entry<String, String> entry : map.entrySet()) {

   System.out.println("Key = " + entry.getKey() +
     ", Value = " + entry.getValue());

}

//get key value phoneBook.get("Mike");

//get all key Set keys = phoneBook.keySet();

//get number of elements phoneBook.size();

//delete all elements phoneBook.clear();

//delete an element phoneBook.remove("Lucy"); </syntaxhighlight>

phoneBook = {} phoneBook = {"Mike":"555-1111",

            "Lucy":"555-2222", 
            "Jack":"555-3333"}

for key in phoneBook:

   print(key, phoneBook[key])

phoneBook["Mary"] = "555-6666"

del phoneBook["Mike"]

count = len(phoneBook)

phoneBook["Susan"] = (1,2,3,4)

print phoneBook.keys()

phoneBook.clear() </syntaxhighlight>

@@ 1. rida: / 1. rida: @@
 {{JavaPython-sisukord}}
+Pythoni sõnastikud on sarnased Java "map"-idele.
+== Näide ==
+{|
+!Java
+!Python
+|-
+|<syntaxhighlight lang="java" line="1" >
+HashMap<String, String> phoneBook =
+                        new HashMap<String, String>();
+phoneBook.put("Mike", "555-1111");
+phoneBook.put("Lucy", "555-2222");
+phoneBook.put("Jack", "555-3333");
+//iterate over HashMap
+Map<String, String> map = new HashMap<String, String>();
+for (Map.Entry<String, String> entry : map.entrySet()) {
+    System.out.println("Key = " + entry.getKey() +
+      ", Value = " + entry.getValue());
+}
+//get key value
+phoneBook.get("Mike");
+//get all key
+Set keys = phoneBook.keySet();
+//get number of elements
+phoneBook.size();
+//delete all elements
+phoneBook.clear();
+//delete an element
+phoneBook.remove("Lucy");
+</syntaxhighlight>
+|<syntaxhighlight lang="python" line="2" >
+#create an empty dictionary
+phoneBook = {}
+phoneBook = {"Mike":"555-1111",
+             "Lucy":"555-2222",
+             "Jack":"555-3333"}
+#iterate over dictionary
+for key in phoneBook:
+    print(key, phoneBook[key])
+#add an element
+phoneBook["Mary"] = "555-6666"
+#delete an element
+del phoneBook["Mike"]
+#get number of elements
+count = len(phoneBook)
+#can have different types
+phoneBook["Susan"] = (1,2,3,4)
+#return all keys
+print phoneBook.keys()
+#delete all the elements
+phoneBook.clear()
+</syntaxhighlight>
+|}