- Java.io package classes
- Java.io - Home
- Java.io - BufferedInputStream
- Java.io - BufferedOutputStream
- Java.io - BufferedReader
- Java.io - BufferedWriter
- Java.io - ByteArrayInputStream
- Java.io - ByteArrayOutputStream
- Java.io - CharArrayReader
- Java.io - CharArrayWriter
- Java.io - Console
- Java.io - DataInputStream
- Java.io - DataOutputStream
- Java.io - File
- Java.io - FileDescriptor
- Java.io - FileInputStream
- Java.io - FileOutputStream
- Java.io - FilePermission
- Java.io - FileReader
- Java.io - FileWriter
- Java.io - FilterInputStream
- Java.io - FilterOutputStream
- Java.io - FilterReader
- Java.io - FilterWriter
- Java.io - InputStream
- Java.io - InputStreamReader
- Java.io - LineNumberInputStream
- Java.io - LineNumberReader
- Java.io - ObjectInputStream
- Java.io - ObjectInputStream.GetField
- Java.io - ObjectOutputStream
- io - ObjectOutputStream.PutField
- Java.io - ObjectStreamClass
- Java.io - ObjectStreamField
- Java.io - OutputStream
- Java.io - OutputStreamWriter
- Java.io - PipedInputStream
- Java.io - PipedOutputStream
- Java.io - PipedReader
- Java.io - PipedWriter
- Java.io - PrintStream
- Java.io - PrintWriter
- Java.io - PushbackInputStream
- Java.io - PushbackReader
- Java.io - RandomAccessFile
- Java.io - Reader
- Java.io - SequenceInputStream
- Java.io - SerializablePermission
- Java.io - StreamTokenizer
- Java.io - StringBufferInputStream
- Java.io - StringReader
- Java.io - StringWriter
- Java.io - Writer
- Java.io package extras
- Java.io - Interfaces
- Java.io - Exceptions
- Java.io package Useful Resources
- Java.io - Discussion
Java.io.FilterInputStream.mark() Method
Description
The java.io.FilterInputStream.mark(int readlimit) method marks the current position in this input stream.
Declaration
Following is the declaration for java.io.FilterInputStream.mark(int readlimit) method −
public void mark(int readlimit)
Parameters
readlimit − The maximum limit of bytes that can be read before the mark position becomes invalid.
Return Value
The method does not return any value.
Exception
NA
Example
The following example shows the usage of java.io.FilterInputStream.mark(int readlimit) method.
package com.tutorialspoint; import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.FilterInputStream; import java.io.IOException; import java.io.InputStream; public class FilterInputStreamDemo { public static void main(String[] args) throws Exception { InputStream is = null; FilterInputStream fis = null; try { // create input streams is = new FileInputStream("C://test.txt"); fis = new BufferedInputStream(is); // reads and prints BufferedReader System.out.println((char)fis.read()); System.out.println((char)fis.read()); // mark invoked at this position fis.mark(0); System.out.println("mark() invoked"); System.out.println((char)fis.read()); System.out.println((char)fis.read()); // reset() repositioned the stream to the mark fis.reset(); System.out.println("reset() invoked"); System.out.println((char)fis.read()); System.out.println((char)fis.read()); } catch(IOException e) { e.printStackTrace(); } finally { // releases any system resources associated with the stream if(is!=null) is.close(); if(fis!=null) fis.close(); } } }
Assuming we have a text file c:/test.txt, which has the following content. This file will be used as an input for our example program −
ABCDEF
Let us compile and run the above program, this will produce the following result −
A B mark() invoked C D reset() invoked C D
java_io_filterinputstream.htm
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