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TreeMap

Wikipedia English The Free Encyclopedia

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Treemapping
In information visualization and computing, treemapping is a method for displaying hierarchical data by using nested rectangles.

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Wikipedia Deutsch Die freie Enzyklopädie

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Tree Map
Eine Tree Map ( für Baumkarte) dient der Visualisierung hierarchischer Strukturen, die hierbei durch ineinander verschachtelte Rechtecke dargestellt werden. Damit können anschaulich Größenverhältnisse dargestellt werden, indem die Fläche der Rechtecke proportional zur Größe der darzustellenden Dateneinheit gewählt wird.

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Wikipédia Français

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Treemap
Une treemap est une représentation de données hiérarchiques dans un espace limité. Elle est par exemple utilisée pour représenter l'occupation du disque dur sur un ordinateur. De nos jours, elle est aussi utilisée pour visualiser le budget d'un État.

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JDK Doc(JAVA)

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TreeMap
- class java.util..TreeMap 
public class TreeMap extends AbstractMap implements SortedMap , Cloneable , Serializable 
Tree:java.lang.Object - java.util.AbstractMap - java.util.TreeMap
Red-Black tree based implementation of the interface. This class guarantees that the map will be in ascending key order, sorted according to the for the key's class (see ), or by the comparator provided at creation time, depending on which constructor is used.
 
TreeMap()
- Constructor for class java.util.TreeMap 
public TreeMap ()
Constructs a new, empty map, sorted according to the keys' natural order. All keys inserted into the map must implement the Comparable interface. Furthermore, all such keys must be mutually comparable: k1.compareTo(k2) must not throw a ClassCastException for any elements k1 and k2 in the map. If the user attempts to put a key into the map that violates this constraint (for example, the user attempts to put a string key into a map whose keys are integers), the put(Object key, Object value) call will throw a ClassCastException.See Also:  Comparable
 
TreeMap(Comparator)
- Constructor for class java.util.TreeMap 
public TreeMap (Comparator  c)
Constructs a new, empty map, sorted according to the given comparator. All keys inserted into the map must be mutually comparable by the given comparator: comparator.compare(k1, k2) must not throw a ClassCastException for any keys k1 and k2 in the map. If the user attempts to put a key into the map that violates this constraint, the put(Object key, Object value) call will throw a ClassCastException.
 
TreeMap(Map)
- Constructor for class java.util.TreeMap 
public TreeMap (Map  m)
Constructs a new map containing the same mappings as the given map, sorted according to the keys' natural order. All keys inserted into the new map must implement the Comparable interface. Furthermore, all such keys must be mutually comparable: k1.compareTo(k2) must not throw a ClassCastException for any elements k1 and k2 in the map. This method runs in n*log(n) time.Throws: ClassCastException - the keys in t are not Comparable, or are not mutually comparable.
 
TreeMap(SortedMap)
- Constructor for class java.util.TreeMap 
public TreeMap (SortedMap  m)
Constructs a new map containing the same mappings as the given SortedMap, sorted according to the same ordering. This method runs in linear time.


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