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Java and J2EE tutorials are lessons and resources aimed at teaching individuals about the Java programming language and the Java 2 Platform, Enterprise Edition (J2EE) for developing enterprise applications. These tutorials cover various aspects of Java and J2EE, including the language syntax, object-oriented programming concepts, J2EE components and APIs, and best practices for developing enterprise applications.
They are designed for both beginners and experienced Java developers, and aim to help individuals gain the skills and knowledge needed to develop high-quality Java and J2EE applications.
Below are the four simple ways you can convert Char[] to String in Java. Using new String(char[]). Using String Constructor.Using valueOf(char[])Using StringBuilder()Create your own REGEX operation …
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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 …
What is Java Stack and how to implement Java Stack without using any Collection or Utilities? Here is a tutorial which we published some time back. In this tutorial we will go over steps on How …
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What is Stack in Java? Have you heard of LIFO? Last-In, First-Out concept? Well, Stack is a LIFO implementation of linear Data Structure. That means, Objects can be inserted or removed from only …
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Java comes with lots of utilities. In this tutorial we will go over simplest way to generate log files using SimpleFormatter and XMLFormatter. On Crunchify, we have published few tutorials about …
In Java there are multiple ways to check ping and port check. You could use system default's ping command, Java's native method InetAddress utility, HttpURLConnection and some more. In production …
java.util.Timer is a utility class that can be used to schedule a thread to be executed at certain time in future. Java Timer class can be used to schedule a task to be run one-time or to be run at …
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In mathematics, the Fibonacci numbers or Fibonacci series or Fibonacci sequence are the numbers in the following integer sequence: By definition, the first two numbers in the Fibonacci sequence …
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Thread States The following diagram illustrates the various states that a Java thread can be in at any point during its life and which method calls cause a transition to another state. This diagram …
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How to send TLS1.3 HTTPs request to your domain and print response? SSLSocket class extends Sockets and provides secure socket using protocols such as the "Secure Sockets Layer" (SSL) or …
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This example illustrates how to copy contents from one file to another file. This topic is related to the I/O (input/output) of java.io.File package. Java.io class represents a file name of the …
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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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