The amazing ByteArrayOutputStream

The use of streams can boost
the performance of your application.

It is often the case that a method writes its output to an OutputStream, but, it happens that you simply want the output as a String. This is the case when you need to make use of the class ByteArrayOutputStream.

Here is a simple example assuming that the aforementioned method implements the prototype:

class IMyClass implements Closeable {

   void someMethod(OutputStream s);

}

Here is the example:

IMyClass xyz = ...; // Initialize your object

ByteArrayOutputStream baos = new ByteArrayOutputStream();

someMethod(baos);

xyz.close(); // First close your object (it's closeable)

String your_result = baos.toString();

baos.close();