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
Tag: Map interface
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 8 – Iterating Map using forEach() method
In one of the previous article, we have discussed various ways to iterate through Map i.e.; Ways to iterate through Map: Using keySet() method and 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 – Collections a utility class for Collection
In this article, we will discuss Collections class – a utility class for Collection framework which has useful methods for below operations like, Sorting Searching Reverse the Read More
Java – Properties class with example
In this article, we will discuss Properties class – one of the Map implemented classes through Java Hashtable class in detail 1. Key points about Read More
Java – HashMap v/s Hashtable
In this article, we will discuss difference between HashMap and Hashtable classes in detail i.e.; HashMap v/s Hashtable 1. Key points about Hashtable: Hashtable is legacy Read More
Java – Hashtable class with examples
In this article, we will discuss Hashtable class – one of the Map implemented classes in detail 1. Key points about Hashtable: Hashtable is legacy class Read More
Java – HashMap v/s HashSet
In this article, we will discuss difference between HashMap and HashSet classes in detail i.e.; HashMap v/s HashSet 1. HashMap v/s HashSet: HashMap HashSet HashMap implements Read More
Java – HashMap v/s LinkedHashMap v/s TreeMap
In this article, we will compare important implementation classes of Map i.e.; HashMap v/s LinkedHashMap v/s TreeMap So let’s us discuss in tabular format; 1. Read More
Java – TreeMap class with example
In this article, we will discuss TreeMap class – the implementation class for NavigableMap interface in detail 1. Key points about TreeMap: TreeMap doesn’t allow duplicate keys Read More
Java 6 – NavigableMap interface
In this article, we will discuss NavigableMap interface with all its important method 1. Key points about NavigableMap: NavigableMap doesn’t allow duplicate keys Stores key-value pairs Read More
Java – SortedMap interface
In this article, we will discuss SortedMap interface with all its important methods in detail 1. Key points about SortedMap : SortedMap doesn’t allow duplicate keys Read More