import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

public class Test {

    public static void main(String[] args) {
        Class<?> clazz;
        try {
            clazz = Class.forName("TextString");
            Constructor<?> ctor = clazz.getConstructor();
            Element object = (Element) ctor.newInstance();
            Method meth = clazz.getMethod("insert", new Class<?>[] {String.class, ArrayList.class});
            meth.invoke(object, "canvas", new ArrayList<Element>());
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}

abstract class Element {
    public String name;
    public String description;
    public String canvas;
    public ArrayList<Element> objects;

    void remove(){

    }
    void toggle(){

    }
    void setBounds(int x, int y, int w, int h){

    }
    public abstract void insert(String canvas, ArrayList<Element> objects);
}

class TextString extends Element {
    public TextString() {
        super();
        this.name = "Text String";
        this.description = "A literal readable string of text.";
    }

    @Override
    public void insert(String canvas, ArrayList<Element> objects) {
        this.canvas = canvas;
        this.objects = objects;
        System.out.println("Text string created.");
    }
}