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Java.io - FileReader
  • 时间:2024-09-17

Java.io.FileReader Class


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Introduction

The Java.io.FileReader class is a convenience class for reading character files.Following are the important points about FileReader −

    The constructors of this class assume that the default character encoding and the default byte-buffer size are appropriate.

    FileReader is meant for reading streams of characters. For reading streams of raw bytes, use FileInputStream.

Class declaration

Following is the declaration for Java.io.FileReader class −

pubpc class FileReader
   extends InputStreamReader

Field

Following are the fields for Java.io.FileReader class −

    protected Object lock − This is the object used to synchronize operations on this stream.

Class constructors

Sr.No. Constructor & Description
1

FileReader(File file)

This creates a new FileReader, given the File to read from.

2

FileReader(FileDescriptor file)

This creates a new FileReader, given the FileDescriptor to read from.

3

FileReader(String fileName)

This creates a new FileReader, given the name of the file to read from.

Class Methods

This class inherits methods from the following classes −

    Java.io.InputStreamReader

    java.uti.Reader

    Java.io.Object

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