Java.io.FilterReader.skip() Method


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Description

The java.io.FilterReader.skip(long n) method skips n number of characters.

Declaration

Following is the declaration for java.io.FilterReader.skip(long n) method −

public long skip(long n)

Parameters

n − Skips n number of characters from the stream.

Return Value

The method returns number of characters actually skipped.

Exception

IOException − If an I/O error occurs.

Example

The following example shows the usage of java.io.FilterReader.skip(long n) method.

package com.tutorialspoint;

import java.io.FilterReader;
import java.io.Reader;
import java.io.StringReader;

public class FilterReaderDemo {

   public static void main(String[] args) throws Exception {
      FilterReader fr = null;
      Reader r = null;
      int i = 0;
      long l = 0l;
      char c;
      
      try {
      
         // create new reader
         r = new StringReader("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
          
         // create new filter reader
         fr = new FilterReader(r) {
         };
         
         // read till the end of the filter reader
         while((i = fr.read())!=-1) {
         
            // convert integer to character
            c = (char)i;
            
            // prints
            System.out.println("Character read: "+c);
            
            // number of characters actually skipped
            l = fr.skip(2);
            
            // prints
            System.out.println("Character skipped: "+l);
         }
         
      } catch(Exception e) {
         
         // if any I/O error occurs
         e.printStackTrace();
      } finally {
         
         // releases system resources associated with this stream
         if(r!=null)
            r.close();
         if(fr!=null)
            fr.close();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Character read: A
Character skipped: 2
Character read: D
Character skipped: 2
Character read: G
Character skipped: 2
Character read: J
Character skipped: 2
Character read: M
Character skipped: 2
Character read: P
Character skipped: 2
Character read: S
Character skipped: 2
Character read: V
Character skipped: 2
Character read: Y
Character skipped: 1

java_io_filterreader.htm

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