问题
I am having trouble adjusting line thickness. Can I do that in Graphics or do i have to do it in Graphics2D? If so, how do I alter the program to make it run?
Thanks!
import java.applet.Applet;
import java.awt.*;
public class myAppletNumberOne extends Applet {
public void paint (Graphics page) {
//Something here???
}
}
回答1:
Yes you have to do it in Graphics2D, but that's hardly an issue, as every Graphics in Swing is a Graphics2D object (it just keeps the old interface for compatibility reasons).
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setStroke(new BasicStroke(3));
g2.drawLine(...); //thick
...
}
As you can see, the g2.setStroke(...) allows you to change the stroke, and there's even a BasicStroke which provides for easy line width selection.
来源：https://stackoverflow.com/questions/16995308/can-you-increase-line-thickness-when-using-java-graphics-for-an-applet-i-dont