Java
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Table of Contents
1. Java Core developer requirements
As a Java developer you need some basic pre-requisites to be even able to run any Java program which you want to implement.
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We have used our favorite IDEs (IntelliJ and Eclipse) to examine the call hierarchy tree of the source code in…
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To be able to run any Java application, we need first to install the Java Software Development Kit or abbreviated…
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Before showing you how to set JAVA_HOME on all the operation systems, let's explain what is an environment variable? And…
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In this tutorial we are going to explain and show important Java commands. These commands enable developers to handle development…
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Eclipse is a community managed and well accepted open source integrated development environment (IDE) for many languages. Eclipse was in…
After you have setup now a Java runtime environment, you can go on with Java basics for the core language.
2. Java core developer language basics
- All
- Boilerplate Code
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In this article you will learn how to remove last element in your Collection-Type List. This includes ArrayList, LinkedList, Vector…
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In this article you will learn how to remove last characters from a String. Beside of the Java standard API…
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You started learning Java, and you need more information than you find in tutorials? So you need Java books.
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In Java Final and Static keywords have a different roles, so let's explain them: Java Final Some more in depth…
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What is Rounding? While we work with numbers in our program we come across the need to round the numbers.…
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In this article we are going to explain primitive data types in Java, which are the most basic data types…
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When to use a primitive and when to use a non-primitive data type in Java? We explain the basics behind…
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To access files in Java, we are going to need a Path. But what is path, what is a file?
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In this article we are going to explain how to read a file from class path. But firstly we need…
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In this article you will learn how to read a file from the Java Classpath.
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Sometimes we need to convert data types from e.g. a number to a string or vice versa. We explain the…
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Most Java application need to use properties at some point, they are used to maintain lists of values in which…
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With the Java final keyword we define our variable (primitive type value or reference value) to be non changeable once…
3. Java professional developer basics
professional basics
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- 2pc
- Boilerplate Code
- Liquibase
- Lombok
- Threading
- Two Phase Commit
- XA Transaction
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Hibernate provides a lot of different dialects to match to the corresponding used database. E.g. if you want to use…
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Maven is a very powerful tool. Often it is considered maven is complicated in it's use. This is true if…
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You have a Microsoft SQL Server and you wonder if it is possible to enable a two phase commit / 2pc…
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You work in Java, JavaScript or TypeScript and you get asked from a client or your supervisor/boss to create a…
4. Java professional developer security
Java security requirements