What is RegEx? Regular Expression is a search pattern for String. java.util.regex Classes for matching character sequences against patterns specified by regular expressions in Java. You …
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 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 …
Java StringJoiner, String.join() and Collectors.joining() Tutorial with all Details – 5 Different ways
Java Developer Platform 8 (Java8) is around since almost 3 years. We have published more than 10 different tutorials on Crunchify with all different abilities and handy utilities. Moving from one …
In Java How to Replace/Remove Characters from String?
How to remove/replace character in a String in Java? The String class represents character strings. All string literals in Java programs, such as "abc", are implemented as instances of this …
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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 …
4 Ways to Check if Array Contains a Specific Value in Java8? IntStream and Arrays.asList Tutorial
This is the simplest and complete solution for your if you want to check if ArrayList contains specific value such as String, Integer, Long or Double. With the combination of Java7 and Java8 - …
In Java How to Print all Environment Properties value using ProcessBuilder?
When you run Java Program locally in Terminal Window or in Eclipse IDE, there are lots of Environment Variable which plays key role during program execution. Here are list of Environment properties …
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In Java how to convert String to Char Array? (Two ways) – String() to Char[]
The simplest way to convert String to Char Array. How to convert String to Char Array in Java? There are two different ways to covert String() to Char[] in Java: Using string.toCharArray() …
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In Java8 How to join List of Objects? Collectors.joining Concatenates the input Elements, separated by the Delimiter
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 …