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In this tutorial, we'll be reading a file into a String in Java. There are a few ways we can read the textual contents of a file. Here's a list of all the classes and methods we'll go over: Files.lines() Files.readString() Files.readAllBytes() FileReader BufferedReader Scanner Files.lines(...
Luka Čupić
Saving a String into files can be done in a few ways using Java. In this article, we'll show some common methods for writing a String into a file. Here's a list of all the classes and methods we'll go over: Files.writeString() Files.write() FileWriter BufferedWriter PrintWriter Files.writeString(...
The forEach() method is part of the Stream interface and is used to execute a specified operation, defined by a Consumer. The Consumer interface represents any operation that takes an argument as input, and has no output. This sort of behavior is acceptable because the forEach() method is used to...
Vladimir Batoćanin
Reading user input is the first step towards writing useful Java software. User input can come in many forms - mouse and keyboard interactions, a network request, command-line arguments, files that are updated with data relevant for a program's execution, etc. We're going to focus on keyboard input via something...
Darinka Zobenica
One of the most popular services available on Amazon Web Services is EC2, which stands for Elastic Compute Cloud. EC2 makes it easy for developers and users to create and manage cloud-hosted virtual machines, also known as EC2 instances. EC2 provides a web interface which makes it easy to spin...
Jacob Stopak
In this tutorial, we'll be diving into String Comparison in Java. String comparison is a common operation in all languages. The ability to check if one String is equal to another allows us to perform fundamental checks and alter the code flow. The == Operator The == operator is one of the...
David Landup
In this article, we'll be using the Java AWS SDK and API to create an S3 bucket, upload files to it, and finally - delete it. One of the most popular services available on Amazon Web Services is the Simple Storage Service (S3). S3 makes it easy for developers and...
In this tutorial, we'll be converting an array into a more versatile ArrayList in Java. Arrays.asList() new ArrayList<>(Arrays.asList()) (Most popular and used approach) new ArrayList<>(List.of()) Collections.addAll() Collectors.toList() Collectors.toCollection() Lists.newArrayList() Arrays are simple and provide the basic functionality...
Lists are some of the most commonly used data structures. In Java, a common question when using a List implementation is: Which implementation do I use? Should you choose an ArrayList or a LinkedList? What's the difference between these two? In this article, we'll go through both of these implementations,...
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