Questions 1. Printing click coordinates. Build a custom subclass of JComponent which listens for MouseEvents, after observing a click, it should just print the coordinates, as in "Click detected at (X,Y)." (but with actual coordinates for X and Y). This means your class should also implement the MouseListener interface, and register itself as a listener in the constructor. Write a main method which creates a new JFrame and adds an instance of your class to the frame. Name your custom class EventLabCanvas (or anything else you prefer. You may want to refer to lecture code posted on May 30th to get started. 2. Drawing circles centered on clicks. Add code to make your canvas draw a small filled circle on itself when it receives a mouseClicked event. The circle should be centered on the location of the click. (Hint: use JComponent.getGraphics () and Graphics.fil10val() in your implementation of the mouseClicked method.) 3. Connecting circles with lines. Modify your canvas so that it draws lines between the centers of the circles as you create them. See Figure 1 for an example. Hint: use instance variables to store most recent click coordinates (or MouseEvent) and getGraphics () and Graphics.drawLine() to draw the line in mouseClicked) 4. Make circles draggable when placing them. Have your program draw small
Questions 1. Printing click coordinates. Build a custom subclass of JComponent which listens for MouseEvents, after observing a click, it should just print the coordinates, as in "Click detected at (X,Y)." (but with actual coordinates for X and Y). This means your class should also implement the MouseListener interface, and register itself as a listener in the constructor. Write a main method which creates a new JFrame and adds an instance of your class to the frame. Name your custom class EventLabCanvas (or anything else you prefer. You may want to refer to lecture code posted on May 30th to get started. 2. Drawing circles centered on clicks. Add code to make your canvas draw a small filled circle on itself when it receives a mouseClicked event. The circle should be centered on the location of the click. (Hint: use JComponent.getGraphics () and Graphics.fil10val() in your implementation of the mouseClicked method.) 3. Connecting circles with lines. Modify your canvas so that it draws lines between the centers of the circles as you create them. See Figure 1 for an example. Hint: use instance variables to store most recent click coordinates (or MouseEvent) and getGraphics () and Graphics.drawLine() to draw the line in mouseClicked) 4. Make circles draggable when placing them. Have your program draw small
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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