Java – How to remove elements from LinkedList
In this article, we will discuss how to remove elements from LinkedList There are different methods available in LinkedList class for removing elements as listed Read More
Category: Collection
How to sort HashSet in Java 8 ?
In this article, we will discuss how to sort HashSet in Java 8. Already, in one of the earlier article we discussed about HashSet sorting in Read More
How to check whether HashMap is empty or not ?
In this article, we will discuss and understand with a program to check whether HashMap is empty or not In earlier article, we have seen Read More
Conversion of ArrayList to Arrays in Java – 2 ways
In this article, we will discuss how to convert ArrayList to Arrays in different ways 1. Conversion of ArrayList to String Arrays using toArrays(); method Read More
How to sort LinkedHashMap by its Values ?
In this article, we will discuss how to convert ordered LinkedHashMap into Sorted TreeMap by its Values Sorting LinkedHashMap in ascending/descending order by its Values: Ascending order sorting: get Read More
How to sort LinkedHashMap by its Keys ?
In this article, we will discuss how to convert ordered LinkedHashMap into Sorted TreeMap by its Keys Sorting LinkedHashMap in both Ascending/descending order by its Keys: Ascending order: pass LinkedHashMap entries Read More
How to sort LinkedHashSet contents in Java ?
In this article, we will discuss how to sort contents of LinkedHashSet Key points about LinkedList: LinkedHashSet maintains insertion-order as it uses doubly-linked list and hash table to store element/objects Different Read More
Various ways to iterate through TreeMap – 5 ways
In this article, we will discuss various ways to iterate through TreeMap. We will list down various Map implementation classes and their key property like element/objects storing-order Read More
Various ways to iterate through TreeSet – 3 ways
In this article, we will discuss various ways to iterate through TreeSet – 3 ways Various ways to iterate through TreeSet: Enhanced for-loop introduced in Java 1.5 version Iterating Read More
Various ways to iterate through LinkedList – 5 ways
In this article, we will discuss various ways to iterate through LinkedList – 5 ways Various ways to iterate through LinkedList Regular for-loop Enhanced for-loop introduced Read More
How to find duplicate in String Arrays ?
In this article, we will see how to find duplicate in String Arrays 1. Step to find duplicate in String Array : Create String Arrays Read More
How to sort Vector using Collections.sort() in Java
In this article, we will list down steps to sort Vector Vector: Vector is implementation class of List interface (i.e.; Vector implements List) Vector uses resizable array or Read More
Sorting Collection of String, StringBuffer and StringBuilder in Java
In this article, we will discuss how to sort collection of, String StringBuffer StringBuilder In Collection framework hierarchy, below classes sorts value/objects stored by-default in Read More
How to remove an entry from HashMap by comparing keys in Java 8
In the previous article, we have discussed on how to remove an entry or entries from HashMap by comparing values using Java 8 APIs Here, Read More
How to remove an entry from HashMap by comparing values in Java 8
In this article, we will discuss how to remove an entry or entries from HashMap using Java 8 APIs Before proceeding further, it is recommended Read More
Map: How ConcurrentModificationException can be handled in Java
In this article, we will discuss various possibilities when ConcurrentModificationException is thrown and its resolution with respect to HashMap Often, this term is quite confusing. So, we Read More
Java: Sorting after merging two String Array
In this article, we will discuss how to merge two arrays and then sort according to natural order i.e.; ascending order. Well, by passing Comparator Read More
Java: Sorting Array in ascending and descending order
In this article, we will discuss how to sort Arrays in both ascending as well as descending order 1. Sorting Array in ascending order Read More
Java: String Array sorting with example
In this article, we will discuss how to sort String[] array with example Arrays class has various sort methods for sorting different primitive data-types and Read More
Java: long[] Array sorting with example
In this article, we will discuss how to sort long[] array with example long: Size is 8 bytes That’s is 64 bits Its range is Read More