![]() A while loop sends myScanner over the file, line by line, for as long as there is a next line. I call it myScanner to differentiate it from its generic class template. Next, it creates a Scanner and loads the file into it. The fact that there's a library specific to this exact error betrays how common this error is. If that file does not exist, Java "throws an exception" (this means it found an error in what you attempted to do and says so), which is "caught" by the very specific FileNotFoundException library. This code creates the variable myfile under the assumption that a file named example.txt exists. ![]() In fact, a Scanner is the same concept as a cursor in a text editor, and you can control that "cursor" for reading and writing with Scanner methods like nextLine: import java.io.File When you open a file in Java, you create a Scanner object, which scans the file you provide, line by line. This example creates a class called Ingest to read data from a file. Java uses the File library to load files. BlueJ is ideal for new programmers, while Eclipse and Netbeans are nice for intermediate and experienced coders. You might also want to investigate an integrated development environment for Java. Once you have Java installed, open your favorite text editor and get ready to code. Free online course: Developing cloud-native applications with microservices architectures.
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