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The Java continue and break Keywords 1. Overview In this quick article, we’ll introduce continue and break Java keywords and focus on how to use them in practice. Simply put, execution of these statements causes branching of the current control flow and terminates the execution of the code in the… Continue Reading java-continue-and-break
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A Guide to Java Loops 1. Overview In this article, we’ll look at a core aspect of the Java language – executing a statement or a group of statements repeatedly – using loops. 2. Intro to Loops In programming languages, looping is a feature which facilitates the execution of a… Continue Reading java-loops
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Read and Write User Input in Java 1. Introduction In this quick tutorial, we’ll demonstrate several ways to use a console for user input and output in Java. We’ll have a look at a few methods of the Scanner class for handling input, and then we’ll show some simple output using System.out. Finally,… Continue Reading java-console-input-output
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Immutable Objects in Java 1. Overview In this tutorial, we’ll learn what makes an object immutable, how to achieve immutability in Java, and what advantages come with doing so. 2. What’s an Immutable Object? An immutable object is an object whose internal state remains constant after it has been entirely… Continue Reading java-immutable-object
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Difference Between Throw and Throws in Java 1. Introduction In this tutorial, we’ll take a look at the throw and throws in Java. We’ll explain when we should use each of them. Next, we’ll show some examples of their basic usage. 2. Throw and Throws Let’s start with a quick introduction. These… Continue Reading java-throw-throws
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Guide to Java Packages 1. Introduction In this quick tutorial, we’ll cover the basics of packages in Java. We’ll see how to create packages and access the types we place inside them. We’ll also discuss naming conventions and how that relates to the underlying directory structure. Finally, we’ll compile and… Continue Reading java-packages
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Guide to hashCode() in Java 1. Overview Hashing is a fundamental concept of computer science. In Java, efficient hashing algorithms stand behind some of the most popular collections we have available – such as the HashMap (for an in-depth look at HashMap, feel free to check this article) and the… Continue Reading java-hashcode
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Java Scanner 1. Overview In this tutorial, we’ll illustrate how to use the Java Scanner to read input and find and skip patterns with different delimiters. 2. Scan a File First – let’s see how to read a file using Scanner. In the following example – we read a file… Continue Reading java-scanner
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Using Math.pow in Java 1. Overview The power of a number means how many times to use the number in multiplication. This can be easily calculated in Java. 2. Math.pow Example Before looking at the example, let’s look at the method’s signature: public double pow(double a, double b) The method… Continue Reading java-math-pow
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If-Else Statement in Java 1. Overview In this tutorial, we’ll learn how to use the if-else statement in Java. The if-else statement is the most basic of all control structures, and it’s likely also the most common decision-making statement in programming. It allows us to execute a certain code section only… Continue Reading java-if-else
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