Read a File. In the previous chapter, you learned how to create and write to a file. In the following example, we use the Scanner class to read the contents of the text file we created in the previous chapter:

Jan 4, 2025 · There are several ways to read a plain text file in Java e.g. you can use FileReader, BufferedReader, or Scanner to read a text file. Every utility provides something special e.g. BufferedReader provides buffering of data for fast reading, and Scanner provides parsing ability.

Jan 8, 2024 · In this tutorial, we’ll explore different ways to read from a File in Java. First, we’ll learn how to load a file from the classpath, a URL, or from a JAR file using standard Java classes. Second, we’ll see how to read the content with BufferedReader , Scanner , StreamTokenizer , DataInputStream , SequenceInputStream, and FileChannel .

The most simple way to read data from a file in Java is making use of the File class to read the file and the Scanner class to read the content of the file.

Aug 28, 2015 · Read the file and loop over its content line by line. Then parse the lines and create a new Employee() in each iteration. Set your values, such as id and name.

Feb 20, 2025 · Learn how to read files in Java with examples. Explore methods like FileReader, BufferedReader, Scanner, and NIO for efficient file reading.

If you have a small-ish file and you would like to read its entire contents in one pass, you can use the readAllBytes(Path) or readAllLines(Path, Charset) method. These methods take care of most of the work for you, such as opening and closing the …

Reading a File in Java. We can read a file in Java using multiple ways. Following are three most popular ways to create a file in Java −. Using FileInputStream() constructor. Using FileReader.read() method. Using Files.readAllLines() method. Let's take a look at each of the way to read file in Java.

I need to read a text file line by line using Java. I use available() method of FileInputStream to check and loop over the file. But while reading, the loop terminates after the line before the last one.

Oct 9, 2024 · Java provides several ways to read files, each suited for different use cases. Whether you are reading character data, binary data, or lines from a file, Java offers classes like FileReader, BufferedReader, Scanner, and the modern Files class from the NIO package.