TreeSet class implements the Navigable Set Interface and It creates a collection that uses a tree for storage. Now lets understand some features of TreeSet below. Features of TreeSet 1) TreeSet implements the Navigable Set Interface. 2) Underlying data structure of TreeSet is balanced tree. 3) Duplicate elements are not allowed. 4) Insertion order is …
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Iterator Interface is one of the important feature of Java with respect to collection. Its purpose is to traverse the elements one by one in collection object to perform the operation. Features of the Collection 1) Iterator interface is the universal cursor. we can apply iterator interface to all the collection object. 2) Iterators can …
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Inheritance :Has a relationship in OOPS Java 1) Has-a- relationship is also known as composition or aggregation 2) No specific keyword is there to implement has a relationship. 3) Its advantage is that it is helpful in code re-usability. Lets understand the Has a relationship with a Java code example : Here we have 4 …
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Inheritance is one of OOPS concept in Java where child class inherits the method of parent class. It emphasize on the res-usability of the code. some facts about Inheritance 1) Inheritance is implements by extends keyword in java. 2) Inheritance make the re-usability of code ie child class can access the methods of parent class …
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Map in java used to represent the represent the group of objects as key-value pair whereas collection concept is to represent the group of objects as a single entity. Example : Suppose we want to store the customer Id and Customer name together then we can use MAP. Below we have described this a java program. Features of MAP …
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