How to find default encoding in java?

Question:

How to find default encoding in java?

Code:

import java.io.*;
 
public class DefaultCharacterEncoding {
   public static void main(String[] args) {
 
      byte [] array = {'w'};
      InputStream is = new ByteArrayInputStream(array);
      InputStreamReader reader = new InputStreamReader(is);
      String dce = reader.getEncoding();
 
      System.out.println("Default character encoding: "  + dce);
   }
}

Output:

$ java DefaultCharacterEncoding
Default character encoding: UTF8