Hello, I have a question about Java. I am working on the following code (shown below). For the mouseMoved event the coordinates must be displayed using black characters, and for the mouseDragged event, the coordinates must be displayed using red characters. How can I do that? I would really appreciate your help. Thanks in advance!
Hello, I have a question about Java. I am working on the following code (shown below). For the mouseMoved event the coordinates must be displayed using black characters, and for the mouseDragged event, the coordinates must be displayed using red characters. How can I do that? I would really appreciate your help. Thanks in advance!
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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Hello, I have a question about Java. I am working on the following code (shown below). For the mouseMoved event the coordinates must be displayed using black characters, and for the mouseDragged event, the coordinates must be displayed using red characters. How can I do that? I would really appreciate your help. Thanks in advance!
// Proj08 file
import java.awt.Frame;
public class Proj08 {
public static void main(String[] args){
Frame aFrame = new Proj08Runner();
}//end main
}//end class Proj08
import java.awt.*;
import java.awt.event.*;
// Proj08Runner file
class Proj08Runner extends Frame {
GUI gui = new GUI();
class MyFrame extends Frame {
int xCoor;
int yCoor;
MyFrame() {//constructor
this.setTitle("Gretchen Suarez");
this.setSize(300,100);
} //end constructor
public void paint(Graphics g) {
//display coordinate information on the Frame
g.drawString("" + xCoor + ", " + yCoor, xCoor, yCoor);
}//end paint()
}//end class MyFrame
class GUI {
public GUI() {//constructor
//Create a visual object of type MyFrame named Frame1
MyFrame myFrame = new MyFrame();
myFrame.setVisible(true);
//Instantiate and register Listener object which will
// terminate the program when the user closes
// the Frame.
WProc1 winProcCmd1 = new WProc1();
myFrame.addWindowListener(winProcCmd1);
//Instantiate and register Listener object which will
// process mouseMoved events to display coordinate
// information on the Frame object named myFrame1.
MyMouseMotionProcessor mouseMotionProc =
new MyMouseMotionProcessor(myFrame);
myFrame.addMouseMotionListener(mouseMotionProc);
}//end constructor
}//end class GUI definition
//This listener class monitors for mouseMove events and
// displays the coordinates of the mouse pointer when the
// mouse is moved inside the client area of the Frame.
class MyMouseMotionProcessor extends MouseMotionAdapter {
MyFrame refToFrame; //save references to the Frame
//Constructor
MyMouseMotionProcessor(MyFrame inFrame) {
//save incoming object reference
refToFrame = inFrame;
}// end constructor
public void mouseMoved(MouseEvent e) {
//Get X and Y coordinates of mouse pointer and store
// in instance variables of the Frame object
refToFrame.xCoor = e.getX();
refToFrame.yCoor = e.getY();
//Force a repaint to display the coordinate information
refToFrame.repaint();
}//end mouseMoved()
public void mouseDragged(MouseEvent e) {
//Get X and Y coordinates of mouse pointer and store
// in instance variables of the Frame object
refToFrame.xCoor = e.getX();
refToFrame.yCoor = e.getY();
//Force a repaint to display the coordinate information
refToFrame.repaint();
}//end mouseMoved()
}//end class MyMouseMotionProcessor
//The following listener is used to terminate the program
// when the user closes the frame object.
class WProc1 extends WindowAdapter {
public void windowOpened(WindowEvent e) {
System.out.println("\nI certify that this program is my own work" +
"\nand is not the work of others. I agree not" +
"\nto share my solution with others." +
"\nGretchen Suarez\n");
}
public void windowClosing(WindowEvent e) {
System.exit(0);
}//end windowClosing()
}//end class WProc1
}
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