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
Tag: HashMap
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
Conversion of List to Map in Java 8
In this article, we will discuss how to convert List into Map in Java 8 Already, in the last article we have discussed how to Read More
Conversion of List to Map in Java
In this article, we will discuss how to convert List into Map in Java List v/s Map: Before starting with List to Map conversion, Read More
Conversion of Map to List in Java 8
In this article, we will discuss how to convert Map into List in Java 1.8 version As Map contains key-value pairs which is called Read More
Conversion of Map to List in Java
In this article, we will discuss how to convert Map into List in Java As Map contains key-value pairs which is called as Map Read More
Various ways to iterate over List of HashMap in Java
In this article, we will discuss different ways to iterate through List of HashMap. Already, in earlier articles, we have discussed following topics Iterating over Read More
Various ways to iterate through Hashtable – 6 ways
In previous articles, we have discussed various ways to iterate through Map i.e.; Various ways to iterate through Hashtable: Using legacy Enumeration interface introduced in Java 1.0 version Read More
ConcurrentHashMap v/s SynchronizedMap
In this article, we will discuss difference between SynchronizedMap and ConcurrentHashMap classes in detail i.e.; ConcurrentHashMap v/s SynchronizedMap Lets us move on and discuss key differences Read More
ConcurrentHashMap v/s HashMap
In this article, we will discuss difference between HashMap and ConcurrentHashMap classes in detail i.e.; ConcurrentHashMap v/s HashMap Lets us move on and discuss key Read More
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
Sorting HashMap by Keys and Values using stream in Java 8
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
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 Keys: We can sort HashMap in Read More
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
How to iterate through LinkedHashMap in reverse order
In this article, we will discuss how to iterate through contents of LinkedHashMap in reverse order Key points about LinkedHashMap: LinkedHashMap maintains insertion-order as it Read More
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 : Read More
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 HashMap : Same example Read More
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 HashMap : Same example Read More