In this article, we will discuss retainAll() method of Collection interface with HashSet boolean retainAll(Collection c); remove/deletes all element/objects of invoking collection except specified collection Read More
In this article, we will discuss an example on how to delete a particular element and later deleting all elements of HashSet 1. HashSet : Read More
In this article, we will discuss how to find size or length of HashSet 1. HashSet : We can use, size() method of Collection interface to Read More
In this article, we will discuss how to convert Arrays into Vector using Arrays class’s utility asList() method Conversion of Arrays into Vector : Method Read More
In this article, we will discuss how to convert LinkedList object into a synchronized Vector object 1. Vector v/s LinkedList : Both classes implements List Read More
In this article, we will discuss how to remove duplicate elements from ArrayList maintaining its insertion-order 1. Solution: simply, convert to LinkedHashSet 2. Remove duplicate Read More
In this article, we will discuss how to perform push and pop operations with LinkedList 1. LinkedList and Deque : From Java 1.5 version, after Read More
In this article, we will discuss simple example on LinkedList specific methods i.e.; what are the various methods available in LinkedList class and how it Read More
In this article, we will discuss how to iterate through contents of LinkedList using descendingIterator() method 1. To iterate LinkedList contents in reverse-order : Method signature: Read More
In this article, we will discuss how to replace/update content of ArrayList using set method of List interface This method replaces old value with new Read More
In this article, we will discuss how to sort contents of ArrayList in descending order using Collections class’s utility sort() and reverseOrder() methods sort(); –> to Read More
In this article, we will discuss how to reverse the contents of ArrayList using Collections class’s utility reverse() method 1. To reverse ArrayList contents : Read More
In this article, we will add one ArrayList to another ArrayList contents using addAll() method of Collection interface Adding one ArrayList contents to another ArrayList Read More
In this article, we will compare 2 ArrayList contents using containsAll method of Collection interface This Collection method is used to check whether one list Read More
In this article, we will discuss an example on how to search whether particular element present in ArrayList or NOT 1. Searching element from ArrayList Read More
In this article, we will discuss an example on how to get sub list from ArrayList Sub list is the portion of an ArrayList by Read More
In this article, we will discuss an example of ArrayList on how to delete a particular element and later deleting all elements 1. ArrayList : Read More
In this article, we will discuss a simple example on ArrayList on how to remove an element at the specified index position 1. ArrayList : Read More
In this article, we will discuss a simple example on ArrayList on how to add an element at the specified index position 1. ArrayList : Read More
In this article, we will discuss how to find size or length of an ArrayList 1. ArrayList : We can use, size() method of Collection Read More