Java Tutorial #55 - Java Map Interface with Examples (Map Data Structure)
Java Tutorial #55 - Java Map Interface with Examples (Map Data Structure)
In this video by Programming for Beginners we will learn Java Map Interface with Examples (Map Data Structure), using Java Tutorial videos.
The Map interface of the Java collections framework provides the functionality of the map data structure.
Elements of Map are stored in key/value pairs. Keys are unique values associated with individual Values.
The Map interface maintains 3 different sets:
- the set of keys
- the set of values
- the set of key/value associations (mapping)
Classes that implement Map
Since Map is an interface, we cannot create objects from it.
We can use below classes to create Objects:
- HashMap class
- EnumMap class
- LinkedHashMap class
- WeakHashMap class
- TreeMap class
Map Methods:
put(K, V) method
putAll() method
putIfAbsent(K, V) method
get(K) method
keySet() method
values() method
entrySet() method
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We can learn Java Programming language to make web applications or mobile applications for android phones and several other applications for windows, Mac OS and Unix operating systems. Also we can make android applications using Java programming. The concepts covered will be related to basic java and core java that will help you in your next interview questions. You can use any version of Java but all concepts will be same for all java versions. I will be using Java SE 8.
Java is a high-level programming language. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.
Java is a MUST for students and working professionals to become a great Software Engineer specially when they are working in Software Development Domain.
Java Tutorial for Beginners Playlist:
• Java Tutorial
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https://www.oracle.com/java/technolog...
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https://www.eclipse.org/downloads/
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