I am a beginner in Java programming language, working in Eclipse IDE, and interested me how to write code for this applet:
Write the applet code, which after every second you click the mouse draws a new circle whose center is the site of the first click and passing through the point at which it occurs second click. All circuits should be left to see not only the last. After drawing the largest circle color blue, and red the least. In the bottom of the image to print the total number of laps.
Thanks

You should try to do it and any code support you should ask , here internal links to applets code :
java/first-applet-t20.html
finished-projects/browser-celsius-to-fahrenheit-converstion-applet-t672.html