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FileReader class

java.lang.Object

java.io.Reader

java.io.InputStreamReader

java.io.FileReader

Class for reading character files.

FileReader is meant for reading streams of characters. For reading streams of raw bytes, consider using a FileInputStream.

Constructor	Summary
FileReader(File file)	Creates a new FileReader, given the File to read from.
FileReader(FileDescriptor fd)	Creates a new FileReader, given the FileDescriptor to read from.
FileReader(String fileName)	Creates a new FileReader, given the name of the file to read from.

Methods inherited from class java.io.InputStreamReader

Return	Method	Summary
void	close()	Closes the stream and releases any system resources associated with it.
String	getEncoding()	Returns the name of the character encoding being used by this stream.
int	read()	Reads a single character. The character read, or -1 if the end of the stream has been reached
int	read(char[] cbuf, int offset, int length)	Reads characters into a portion of an array. The character read, or -1 if the end of the stream has been reached
boolean	ready()	Tells whether this stream is ready to be read.

Methods inherited from class java.io.Reader

Return	Method	Summary
void	mark(int readAheadLimit)	Marks the present position in the stream.
boolean	markSupported()	Tells whether this stream supports the mark() operation.
void	reset()	Resets the stream.
long	skip(long n)	Skips characters.

Revised from Open JDK source code


import java.io.FileReader;

public class Main {
  public static void main(String[] argv) throws Exception {
    FileReader fr = new FileReader("text.txt");

    int ch;
    do {
      ch = fr.read();
      if (ch != -1)
        System.out.println((char) ch);
    } while (ch != -1);
    fr.close();
  }
}

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