Here is another example to show how to read a file in Java with BufferedInputStream and DataInputStream classes. The readLine() from the type DataInputStream is deprecated. Sun officially announced this method can not convert property from bytes to characters.
you can store it in array and then use whichever line you want.. this is the code snippet that i have used to read line from file and store it in a string array, hope this will be useful for you :) read from a file using BufferedReader, and FileReader How to perform certain task when a GUI button is pressed on a different .java file Java BufferedReader Class. Java BufferedReader class is used to read the text from a character-based input stream. It can be used to read data line by line by readLine() method. It makes the performance fast. It inherits Reader class. Java BufferedReader class declaration. Let's see the declaration for Java.io.BufferedReader class: Note: There are many available classes in the Java API that can be used to read and write files in Java: FileReader, BufferedReader, Files, Scanner, FileInputStream, FileWriter, BufferedWriter, FileOutputStream, etc.Which one to use depends on the Java version you're working with and whether you need to read bytes or characters, and the size of the file/lines etc. BufferedReader(Reader in, int sz) : Creates a buffering character-input stream that uses an input buffer of the specified size. Methods: void close() : Closes the stream and releases any system resources associated with it.Once the stream has been closed, further read(), ready(), mark(), reset(), or skip() invocations will throw an IOException. Java Files.newBufferedReader. The Files.newBufferedReader() is a convenience method which opens a file for reading, returning a BufferedReader that may be used to read text from the file in an efficient manner. Bytes from the file are decoded into characters using the specified charset. Read and write to files with buffered streams in Java Posted on 15th February 2016 File buffering is a mechanism where the data is read/written into a buffer memory area rather than directly on to disk.
In this tutorial we will see two ways to read a file using BufferedReader.. Method 1: Using readLine() method of BufferedReader class.. public String readLine() throws IOException. It reads a line of text.
Java Files.newBufferedReader. The Files.newBufferedReader() is a convenience method which opens a file for reading, returning a BufferedReader that may be used to read text from the file in an efficient manner. Bytes from the file are decoded into characters using the specified charset. Read and write to files with buffered streams in Java Posted on 15th February 2016 File buffering is a mechanism where the data is read/written into a buffer memory area rather than directly on to disk. Let's look into the example programs to read a file in Java. 1. BufferedReader Read File. We can use BufferedReader to read the text file contents into char array. BufferedReader is efficient for reading the file because it buffers the input from the specified file. Without buffering, each invocation of the read() or readLine() methods will
Java BufferedReader. BufferedReader reads text from a character -input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.; The buffer size may be specified, or the default size may be used. The default is large enough for most purposes.
There are multiple ways of writing and reading a text file. this is required while dealing with many applications. 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.