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SSL Handshake Failures 1. Overview Secured Socket Layer (SSL) is a cryptographic protocol which provides security in communication over the network. In this tutorial, we’ll discuss various scenarios that can result in an SSL handshake failure and how to it. Note that our Introduction to SSL using JSSE covers the basics of… Continue Reading java-ssl-handshake-failures
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Guide to StreamTokenizer 1. Introduction In this tutorial, we’ll show how to parse a stream of characters into tokens using the Java StreamTokenizer class. 2. StreamTokenizer The StreamTokenizer class reads the stream character by character. Each of them can have zero or more of the following attributes: white space, alphabetic,… Continue Reading java-streamtokenizer
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Using Curl in Java 1. Overview In this tutorial, we’re going to look at how to use the curl tool inside a Java program. Curl is a networking tool used to transfer data between a server and the curl client using protocols like HTTP, FTP, TELNET, and SCP. 2. Basic Use… Continue Reading java-curl
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Getting Started with Java RMI 1. Overview When two JVMs need to communicate, Java RMI is one option we have to make that happen. In this article, we’ll bootstrap a simple example showcasing Java RMI technology. 2. Creating the Server There are two steps needed to create an RMI server:… Continue Reading java-rmi
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JAVA_HOME should point to a JDK not a JRE 1. Introduction In this tutorial, we’re going to talk about an exception that Maven throws when misconfigured: JAVA_HOME should point to a JDK, not a JRE. Maven is a powerful tool for building code. We’ll look under the hood to understand why… Continue Reading maven-java-home-jdk-jre
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“Sneaky Throws” in Java 1. Overview In Java, the sneaky throw concept allows us to throw any checked exception without defining it explicitly in the method signature. This allows the omission of the throws declaration, effectively imitating the characteristics of a runtime exception. In this article, we’ll see how this… Continue Reading java-sneaky-throws
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A Guide to the Folding Technique in Java 1. Introduction In this tutorial, we consider hashing techniques used in various data structures that provide constant time access to their elements. We discuss in more detail the so-called folding technique and give a short introduction to mid-square and binning techniques. 2.… Continue Reading folding-hashing-technique
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Practical Java Examples of the Big O Notation 1. Overview In this tutorial, we’ll talk about what Big O Notation means. We’ll go through a few examples to investigate its effect on the running time of your code. 2. The Intuition of Big O Notation We often hear the performance… Continue Reading java-algorithm-complexity
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Guide to FastUtil 1. Introduction In this tutorial, we’ll be looking at the FastUtil library. First, we’ll code some examples of its type-specific collections. Then, we’ll analyze the performance that gives FastUtil its name. Finally, let’s take a peek at FastUtil‘s BigArray utilities. 2. Features The FastUtil Java library seeks to extend the Java… Continue Reading fastutil
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Get the Current Working Directory in Java 1. Overview It’s an easy task to get the current working directory in Java, but unfortunately, there’s no direct API available in the JDK to do this. In this tutorial, we’ll learn how to get the current working directory in Java with java.lang.System,… Continue Reading java-current-directory
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