java map

Java Map Interface Tutorial

2 Comments / Map / By S. Nageswara Rao, Corporate Trainer

Java Map Interface Tutorial Properties of Java Map Interface The Map interface stores the elements in key/value pairs (as in Hashtable). It does not accept duplicate keys. One key represents only one value. Two keys may have the same value. For example, two students, with roll numbers 35 and 46, may have the same marks …

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interface Map Tutorial

Leave a Comment / Collection Framework in Java, Map / By S. Nageswara Rao, Corporate Trainer

Map Tutorial: Hashtable in legacy classes (JDK 1.0 DS like stack, vector are known as legacy classes) and derived classes of Map interface are quiet different from other in that these classes store elements in duo known as key/value pair. Whenever, you add an element, you must supply a key also along with it. Later, …

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