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
Tag: Iterator
Various ways to iterate over HashMap of ArrayList in Java
In previous articles, we have discussed various ways to iterate through Map but those are with String object only i.e.; both keys and values are in String-type only 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
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
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
How to delete all entries of HashMap
In this article, we will discuss how to remove all entries from invoking HashMap HashMap : clear() –> to delete all entries present in HashMap Note: above Read More
How to delete an entry of HashMap
In this article, we will discuss how to remove a particular entry from invoking HashMap HashMap : remove(key) –> to delete a particular entry by specifying Read More
Various ways to iterate through HashMap – 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 Read More
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
Various ways to iterate through Vector – 5 ways
In this article, we will discuss various ways to iterate through Vector objects Various ways to iterate through Vector: regular for-loop Enhanced for-loop introduced in Read More