How can you read certain parts of lines from a file?

Question

Java

There is an adapter class for Writer:

class EntityOutputWriter implements EntityOutput {
    private final Writer out;

    public EntityOutputWriter(Writer out) {
        this.out = out;
    }

    @Override
    public void writePerson(Person person) throws IOException {
        int age = person.getAge();
        String name = person.getName();

        out.write("<person>\n");
        out.write("    <age>" + age + "</age>\n");
        out.write("    <name>" + name + "</name>\n");
        out.write("</person>\n");

        out.flush();
    }

    @Override
    public void writePoint(Point point) throws IOException {
        out.write("<point x = '" + point.getX() + "' y = '" + point.getY() + "'/>\n");

        out.flush();
    }
}

After using this class, the following data is written to the file (The values ​​are given as an example. In reality, they are specified when writing to the file in the constructor):

<point x = '11' y = '15'/>
<person>
    <age>28</age>
    <name>Nick</name>
</person>

You need to write an adapter for Reader whose read methods will return Point and Person objects:

class EntityInputReader implements EntityInput {
    private final Reader src;

    public EntityInputReader(Reader src) {
        this.src = src;
    }

    @Override
    public Person readPerson() throws IOException {
        // some code
       // return new Person(???, ???);
    }

    @Override
    public Point readPoint() throws IOException {
        // some code
       // return new Point(???, ???);
    }
}

How to write these read methods? How to read only the data: 11, 15, "Nick", 28, so that they can be passed to the constructor in the readPoint() and readPerson() methods?