Collectors.joining() Concatenates the input Elements, separated by the Delimiter with provided Prefix and Suffix values. Yesterday I've published an article on StringJoiner(), String.join() which …
Java8 Archives...
Java8 is the next evolution version with lots of valuable APIs. Find here list of 50+ Java8 tutorials which we published on Crunchify. Java 8 Tutorial for Beginners – Learn Java 8 in simple and easy steps.
In Java How to find a Line with Maximum Number of Words? Using Stream.forEach() Iterator
For any given file, Write a Java program to find a line with maximum number of words in it is a very common interview question. In other words, write a Java program to find longest line from …
How to Sort a HashMap by Key and Value in Java 8 – Complete Tutorial
In Java 8 – How to sort a Map? On Crunchify we have written almost ~400 java tutorials and this one is an addition to Java8 category. I love Java collection and have multiple tutorials on How to …
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Difference between String, StringBuffer and StringBuilder in Java – Example attached
In this Java tutorial we will go over difference between Java String, StringBuffer and StringBuilder. Let's get started: String: The String class represents character strings. All string …
In Java how to join Arrays? 3 ways: Apache Commons ArrayUtils, Java 8 Streams and Simple APIs
In this tutorial we will go over different ways we can join Java Arrays. If you have any of below questions then you are at right place: How can I concatenate two arrays in Java?How to Merge Two …
What is ConcurrentModification Exception in a multi-threaded environment?
Are you getting ConcurrentModification Exception in Java? How to fix it? Mainly this happens when you try to remove element from ArrayList while iterating through it. We usually get this exception …
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In Java How to remove Elements while Iterating a List, ArrayList? (5 different ways)
In Java How to remove elements from ArrayList while iterating? The list.remove(s) will throws java.util.ConcurrentModificationException, if you remove an item from an ArrayList while iterating …
Java Stream API Operations and Lambda Expression Tutorial
Java is a collection of APIs and with the introduction of Java 8, we do have more choice than before. java.util.stream API supports functional-style operations on streams of elements, such as …
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How to Read a File line by line using Java Stream – Files.lines() and Files.newBufferedReader() Utility APIs
Java 9 already in full swing and ready for feature complete by end of May. Even though Java 8 released couple of years back, I'm sure there are very few companies moved to even Java 8 JDK for their …
