How to use Java variables
Java variables can store different data types and are an elementary part of the programming language. In this tutorial, we explain how to declare and initialize Java variables, what the different variable types are and how variables work with different data types. We also show a…
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How to use Java’s StringBuilder
As conventional strings cannot be subsequently changed without creating a new object, an alternative can often come in handy. Java StringBuilder allows you to manipulate the stored string using various methods. In our article, you can find out how the class works, what…
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How to use Java booleans
Java booleans are an important component of many programing commands. They’re used when an answer can only have two possible values. When used in combination with other code, they can determine when to execute or terminate an action. In this tutorial, we’ll explain what Java…
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How does the Java do-while loop work?
Java’s do-while loop offers a practical method for executing instructions several times. A termination condition is used to determine how many repetitions should take place. If the limit is reached, the program exits the loop immediately. Otherwise, the actions will continue to…
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How to use Java enums to create constants in your code
If you need to set fixed values in your code, Java’s enums are a powerful option. They are especially handy for variables restricted to a few specific states. For example, enums in Java can be used for months, weekdays, color variations, or stages in a manufacturing process. In…
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How to use Java final for classes, methods and variables
Occasionally, it’s important that specific components within the code cannot be changed afterward. Java provides a modifier known as “final” that is designed for this specific use. We will clarify what Java final actually means, and demonstrate through practical examples how it…
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How to convert a string to int in Java
To convert string to int in Java, you have the choice between two practical methods: Integer.parseInt() and Integer.valueOf(). We will explain how the two methods work, show you their syntax and explain how to use them through some practical examples. You will also learn about…
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What is np.where in Python?
The Python method np.where() makes it possible to select and replace values in arrays based on a condition. It’s an essential tool for data manipulation, analysis and machine learning. What’s more, its simple syntax makes it easy to use. Keep reading to find out how to use…
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How to install Nextcloud on Kubernetes
Nextcloud and Kubernetes work perfectly together to establish a cloud solution that’s as flexible and secure as possible. In this dedicated article, we’ll show you which settings and precautions you need to take to ensure that the cloud service and container management work well…
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How to trim strings in Python
Python trim functions remove characters from the beginning or end of strings. Their main use is in normalizing text data to ensure it’s displayed consistently. This in turn helps with readability and gives data a clean appearance. In this article, we’ll show you how the three…
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