Java.io.BufferedWriter.write() Method

Description

The java.io.BufferedWriter.write(String str, int off, int len) method writes a part of the specified string to this writer.

Declaration

Following is the declaration for java.io.BufferedWriter.write(String str, int off, int len) method:

public void write(String str, int off, int len)

Parameters

• str − String to be written.

• off − Offset to start reading characters to be written.

• len − Length of the substring.

Return Value

This method does not return any value.

Exception

• IOException − If an I/O error occurs.

Example

The following example shows the usage of public void write(String str, int off, int len) method.

package com.tutorialspoint;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.StringWriter;

public class BufferedWriterDemo {
   public static void main(String[] args) throws IOException {
      StringWriter sw = null;
      BufferedWriter bw = null;
      
      String str = "Hello World!";
      
      try{
         // create string writer
         sw = new StringWriter();
         
         //create buffered writer
         bw = new BufferedWriter(sw);
         
         // writing part of the string to the writer
         bw.write(str, 4, 8);
         
         // forces out the characters to string writer
         bw.flush();
         
         // string buffer is created
         StringBuffer sb = sw.getBuffer();
         
         //prints the string
         System.out.println(sb);
            
      }catch(IOException e){
         // if I/O error occurs
         e.printStackTrace();
      }finally{
         // releases any system resources associated with the stream
         if(sw!=null)
            sw.close();
         if(bw!=null)
            bw.close();
      }
   }
}

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

o World!