Java中的滚动文本

Question

I'm working on a scrolling text which runs from left to right, it works perfectly fine, but I can't figure it out, how to change the size font and text color, could someone tell me please how to change the text size, font and color. Should I set the panel's background? or the frame? or the label? The question seems simple but I'm still new and learning

Here is the code:

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class RunningText extends JPanel {

  int x;
  int y;
  String text;

  public RunningText() {
    JLabel label = new JLabel();
    x = -45;
    y = 150;
    text = "DSTU";
    setSize(400, 300);
  }

  public void paint(Graphics g) {
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, 400, 300);
    g.setColor(Color.BLACK);
    g.drawString(text, x, y);
    System.out.println(x + " " + y);
  }

  public void start() throws InterruptedException {
    while (true) {
      while (x <= getWidth()) {
        x++;
        y = getHeight() / 2;
        repaint();
        Thread.sleep(10);
      }
    }
  }

  public static void main(String[] args) throws InterruptedException {
    JFrame frame = new JFrame();
    RunningText run = new RunningText();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add(run);
    frame.setSize(400, 300);
    frame.setVisible(true);
    run.start();

  }
}

Answer 1

for change the color of the text use by the second time the method setColor() in the Graphics object and for change the Font use the method setFont() in the Graphics object

    public void paint(Graphics g) {
        g.setColor(Color.white);
        g.fillRect(0, 0, 400, 300);
        g.setColor(Color.RED);
        g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20)); //changes the font to sans serif, make it bold and set the font size in twenty
        g.drawString(text, x, y);
        System.out.println(x + " " + y);
    }

postscript: the infinite while is useless

    public void start() throws InterruptedException {

        while (x <= getWidth()) {
            x++;
            y = getHeight() / 2;
            repaint();
            Thread.sleep(10);
        }

    }