使用Java 2D和Swing绘制图形

Question

I want to know if it is easy to draw a graph (circle and arrows to link each circles) using Java2D and Swing. And I want some tutorials or just small examples.

Answer 1

Well, the API is quite easy to use, so it really depends on what you will be drawing...

See this website: http://docs.oracle.com/javase/tutorial/2d/

Answer 2

Well it depends on what you're doing. If you're only doing things like drawing a line from a point to another point using the click of a mouse, then it is quite simple. For something like that, all you would need to do is implement the

 public void drawComponent(Graphics g){
      g.drawLine(/*xPosition of click*/,/*yPosition of click*/, null);
 }

method inside your class, and then implement MouseListener for the mouse click. Just implement by doing

 import ...
 public class ClassName implements MouseListener

and then the mouse listener onto whatever component you're using such as a JFrame, JPanel, or anything such as those.

Hope that helps