Implement the constructor and the read() method in the ChangeToUpperCaseInputStream class. The constructor should call the constructor of the superclass and the read() method should read the data using the superclass's read() method and convert it to upper case before returning it. Right-click on the project name again and select "New -> Java Class". Name the class "ChangeToUpperCaseOutputStream" and make sure to select "extends FilterOutputStream" as the superclass. Implement the constructor and the write() method in the ChangeToUpperCaseOutputStream class. The constructor should call the constructor of the superclass and the write() method should convert the data to upper case before calling the superclass's write() method to write it to the output stream. Once you have implemented these classes, you can use them in your main program by creating an instance of the ChangeToUpperCaseInputStream or ChangeToUpperCaseOutputStream and passing it to your FileInputStream or FileOutputStream, respectively. This will allow you to read or write data in upper case.

Sure, here is an example implementation of the ChangeToUpperCaseInputStream and ChangeToUpperCaseOutputStream classes:

import java.io.*;

public class ChangeToUpperCaseInputStream extends FilterInputStream {

    public ChangeToUpperCaseInputStream(InputStream in) {
        super(in);
    }

    @Override
    public int read() throws IOException {
        int c = super.read();
        return (c == -1 ? c : Character.toUpperCase((char) c));
    }
}

public class ChangeToUpperCaseOutputStream extends FilterOutputStream {

    public ChangeToUpperCaseOutputStream(OutputStream out) {
        super(out);
    }

    @Override
    public void write(int b) throws IOException {
        super.write(Character.toUpperCase((char) b));
    }
}

In the above code, the ChangeToUpperCaseInputStream class extends FilterInputStream and overrides the read() method to read the data using the superclass's read() method and convert it to upper case before returning it. Similarly, the ChangeToUpperCaseOutputStream class extends FilterOutputStream and overrides the write() method to convert the data to upper case before calling the superclass's write() method to write it to the output stream.

To use these classes in your main program, you can create an instance of ChangeToUpperCaseInputStream or ChangeToUpperCaseOutputStream and pass it to your FileInputStream or FileOutputStream, respectively. Here is an example:

import java.io.*;

public class MyProgram {
    public static void main(String[] args) throws IOException {
        FileInputStream in = new FileInputStream("input.txt");
        ChangeToUpperCaseInputStream upperCaseIn = new ChangeToUpperCaseInputStream(in);
        
        FileOutputStream out = new FileOutputStream("output.txt");
        ChangeToUpperCaseOutputStream upperCaseOut = new ChangeToUpperCaseOutputStream(out);
        
        int c;
        while ((c = upperCaseIn.read()) != -1) {
            upperCaseOut.write(c);
        }
        
        upperCaseIn.close();
        upperCaseOut.close();
    }
}

In the above code, we first create a FileInputStream and wrap it in a ChangeToUpperCaseInputStream. We also create a FileOutputStream and wrap it in a ChangeToUpperCaseOutputStream. We then read data from the input stream using the read() method of the ChangeToUpperCaseInputStream and write data to the output stream using the write() method of the ChangeToUpperCaseOutputStream. Finally, we close both streams to release any resources they are holding.