Swing/AWT/SWT :: Keeping Track Of Strings Drawn On JPanel Using Paint

So, I have this simple program that paints a string on JPanel using g2.drawString("Hello world", 40, 120). Basically, I want to be able to keep track of many strings on the JPanel at once. I'm not sure how to do this. For example, I would want to have an ArrayList of objects that keep track of these strings.

I want to be able to click-and-drag these strings so I will need to know there locations, etc.

Right now, using g2.drawString, it only draws the string. I want something like gw.draw(myStringObject).

import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import javax.swing.JFrame;
import javax.swing.JPanel;

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