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Java writer outputstream

                         

Following example contains subclasses of  Writer & OutputStream classes. Writer & OutputStream are both abstract classes. In the example working of subclasses of both the abstract classes are demonstrated.

In the example subclass OutputStreamWriter of abstract class Writer is used. And subclasses ByteArrayOutputStream & FileOutputStream of abstract class OutputStream is used.

 

 

 

 

Writer_OutputStream.java
import java.io.*;

public class Writer_OutputStream {

  public static void main(String args[]) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    OutputStreamWriter ow = new OutputStreamWriter(out);

    ow.write("Constructor argument is ByteArrayOutStream object");
    ow.flush();
    System.out.println(out.toString());

    FileOutputStream flt = new FileOutputStream(new File("rose.txt"));
    ow = new OutputStreamWriter(flt);
    ow.append("welcome to www.codingdiary.com");

    System.out
        .println("\nAppended sequence of characters will generate in a file rose.txt");
    ow.flush();
  }
}

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