Maybe this example will help you

import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JTextArea;
 
public class JTextAreaFontandColor extends JFrame {
 
    JTextArea txt = new JTextArea();
 
    public JTextAreaFontandColor() {
 
        setLayout(null);
 
        txt.setBounds(3, 3, 300, 200);
        add(txt);
 
        Font font = new Font("Verdana", Font.BOLD, 12);
        txt.setFont(font);
        txt.setForeground(Color.BLUE);
 
        txt.setText("\n \n JTextArea font & color change example");
    }
 
 
    public static void main(String[] args) {
 
        JTextAreaFontandColor jtxt = new JTextAreaFontandColor();
        jtxt.setSize(313,233);
        jtxt.setTitle("JTextArea font & color settings");
        jtxt.show();
 
    }
}

The only way your going to learn is if you just keep practising writing code. Go through the various chapters and quiz yourself to see if you know it. Youtube will be your best friend also check out the tutorials here they are pretty good.

Create a variable containing the stock and use a counter

int cheese = 2;
if(cheese == sold)
cheese--;

Welcome! Well you have came to the right place!

Tackling a big project first might be too confusing. Your house won't be too good without foundation