Java – Sorting Hashtable contents
In this article, we will discuss how to sort Hashtable contents We can sort Hashtable in both ascending and descending order, by passing Hashtable contents Read More
Tag: collection framework
Java 8 – Sorting HashMap by Keys and Values using Stream
In this article, we will discuss how to sort HashMap by its Keys and Values using stream in Java 8 Prior to Java 8 release, Read More
Java – Sorting HashMap by Keys and Values
In this article, we will discuss how to sort HashMap by its Keys and Values 1. Sorting HashMap by its Keys : We can sort Read More
Java – Converting Unordered HashMap into Sorted TreeMap
In this article, we will discuss how to convert unordered HashMap into Sorted TreeMap We can sort HashMap in both ascending and descending order, by Read More
Java – How to iterate through LinkedHashMap in reverse-order ?
In this article, we will discuss how to iterate through contents of LinkedHashMap in reverse-order 1. Key points about LinkedHashMap: LinkedHashMap maintains insertion-order as it Read More
Java – Adding one HashMap to another HashMap using putAll method
In this article, we will add one HashMap contents to another HashMap using putAll() method of Map interface Adding one HashSet to another HashSet : Method Read More
Java – How to check whether a particular value is present in HashMap ?
In this article, we will discuss how to check whether a value is present in the invoking HashMap or Not ? 1. Searching a value Read More
Java – How to check whether a particular key is present in HashMap ?
In this article, we will discuss how to check whether a key is present in the invoking HashMap or Not 1. Searching a key from Read More
Java – How to delete all entries of HashMap ?
In this article, we will discuss how to remove all entries from invoking HashMap 1. HashMap : clear() –> to delete all entries present in HashMap Note: above Read More
Java – How to delete an entry of HashMap ?
In this article, we will discuss how to remove a particular entry from invoking HashMap 1. HashMap : remove(key) –> to delete a particular entry by specifying Read More
Java – Iterate through HashMap in 5 ways
In this article, we will discuss various ways to iterate through HashMap or implementation classes of Map interface like LinkedHashMap or TreeMap Map implementation classes Read More
Java – How to get size or length of HashMap ?
In this article, we will discuss how to find size or length of a HashMap or implementation classes of Map interface like LinkedHashMap or TreeMap Read More
Java – How to get all Entries or Key-Value pairs of HashMap ?
In this article, we will discuss how to get all entries or Key-Value pairs of a HashMap or implementation classes of Map interface like LinkedHashMap Read More
Java – How to get all values of a HashMap ?
In this article, we will discuss how to get all values of a HashMap or implementation classes of Map interface like LinkedHashMap or TreeMap 1. Read More
Java – How to get all keys of a HashMap ?
In this article, we will discuss how to get all keys of a HashMap or implementation classes of Map interface like LinkedHashMap or TreeMap 1. Read More
Java – How to remove elements while iterating collection object ?
In this article, we will discuss how to remove elements from ArrayList while iterating Collections objects using Iterator interface Note: ConcurrentModificationException will be thrown when Read More
Java – How to get minimum element from an ArrayList ?
In this article, we will discuss how to get minimum element from ArrayList using Collections class’s utility min() method 1. To get minimum element from Read More
Java – How to get maximum element from an ArrayList ?
In this article, we will discuss how to get maximum element from ArrayList using Collections class’s utility max() method 1. To get maximum element from Read More
Java – Converting Ordered ArrayList into Sorted TreeSet
In this article, we will discuss how to convert Ordered ArrayList into Sorted TreeSet in Java We can sort ArrayList in both ascending and descending Read More
Java – Sorting HashSet in Ascending and Descending order
In this article, we will discuss how to sort HashSet contents in ascending as well as descending order Sorting HashSet in Ascending and Descending order: Read More