Java I/O How to - Read and write int with buffer

Question

We would like to know how to read and write int with buffer.
Answer

/*from   w  w w. java2s.  c o  m*/
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import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class BufferedCopy {
  public static void main(String[] args) throws IOException {
    BufferedReader inputStream = null;
    BufferedWriter outputStream = null;

    try {
      inputStream = new BufferedReader(new FileReader("xanadu.txt"));
      outputStream = new BufferedWriter(new FileWriter("characteroutput.txt"));

      int c;
      while ((c = inputStream.read()) != -1) {
        outputStream.write(c);
      }
    } finally {
      if (inputStream != null) {
        inputStream.close();
      }
      if (outputStream != null) {
        outputStream.close();
      }
    }
  }
}