Java – How to delete an element and delete all elements of HashSet ?
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
Category: Collection
Java – How to get size or length of HashSet ?
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
Java – Conversion of Arrays to Vector
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
Java – Conversion of LinkedList into Vector
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
Java – How to remove duplicate elements from ArrayList maintaining insertion-order ?
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
Java 5 – Queue’s push and pop operations with LinkedList
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
Java – LinkedList specific method examples
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
Java – How to iterate through LinkedList in reverse-order ?
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
Replacing ArrayList element with new value using set() method
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
Java – Sorting ArrayList in Descending-order
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
Java – How to reverse ArrayList contents ?
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
Java – Adding one ArrayList to another ArrayList using addAll() method
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
Java – Comparing two ArrayList objects using containsAll() method
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
Java – How to check whether particular element is present in an ArrayList ?
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
Java – How to get sub-list from ArrayList ?
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
Java – How to delete an element and delete all elements of an ArrayList
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
Java – Remove element from ArrayList at specified index position
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
Java – Adding element to ArrayList at specified index position
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
Java – How to get size or length of an ArrayList
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
Java 8 – Iterating List using forEach() method
In previous article, we have discussed various ways to iterate through List i.e.; Various ways to iterate through List: regular for-loop Enhanced for-loop introduced in Read More