Reading file java example

Active 2 months ago. Viewed 76k times. Thanks a lot! Improve this question. Terkwood 41 6 6 bronze badges. Edamame Edamame Add a comment. Active Oldest Votes. Improve this answer. Is there a corresponding jar for those classes in maven that I can use? There are also installation instructions. I want to get the email content, from, to etc — user Show 2 more comments.

Enigo Enigo 3, 5 5 gold badges 28 28 silver badges 50 50 bronze badges. The most useful package that is provided for this is the java. This class contains the Class Java BufferedReader under package java. BufferedReader is a Java class to reads the text from an Input stream like a file by buffering characters that seamlessly reads characters, arrays or lines.

In general, each read request made of a Reader causes a corresponding read request to be made of the underlying character or byte stream. A typical usage would involve passing the file path to the BufferedReader in Java as follows:.

A file is a container in a computer system for storing information. Files used in computers are similar in features to that of paper documents used in library and office files. There are different types of files such as text files, data files, directory files, binary and graphic files, and these different types of files store different types of information.

Different programming languages provide us different operations to be performed on these files. In java, we can create, read and write on files using various.

In this article, we will learn how we can read a file in java using various methods including Java desktop, FileInputStream , BufferedReader , FileReader , and Scanner class. All in all, this tutorial will contain all the necessary information and examples that you need to learn in order to start working with files in java. As we already discussed the file is like a container that stores information and can be used later.

In this section, we will look at various methods to read files. In this tutorial, we assume that our file name, " MyFile. The first method that we will use to read or open a file in java is the Desktop class. This class is present in the java. It has the method called open that opens a file for us.

As the Desktop is platform-independent, so we need to check whether our Operating System supports Desktop or not. For example. There are multiple ways of writing and reading a text file. There are several ways to read a plain text file in Java e.

Every utility provides something special e. BufferedReader provides buffering of data for fast reading, and Scanner provides parsing ability. Then Java SE 8 introduces another Stream class java. Stream which provides a lazy and more efficient way to read a file.

Let us discuss each of the above methods to a deeper depth and most importantly by implementing them via a clean java program. Method 1: Using BufferedReader class This method reads text from a character-input stream.

It does buffer for efficient reading of characters, arrays, and lines. The buffer size may be specified, or the default size may be used.