{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

FreeDrawApplet - myVertex.setY(int(Math.random(HEIGHT 100...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
import javax.swing.*; import java.awt.event.*; import java.applet.*; import java.awt.*; i public class FreeDrawApplet extends JApplet implements MouseMotionListener { //instance variables ColorCircle[] myGraph; final int NUM_CIRCLES = 7; final int WIDTH = 400; final int HEIGHT = 400; public class ColorCircle { private int x; private int y; public void setX(int iNewX) { x = iNewX; } public void setY(int iNewY) { y = iNewY; } public void paint (Graphics g) { g.fillOval(x - 10, y - 10, 20, 20); } public boolean selected(int iXcoord, int iYcoord) { if ((iXcoord >=x - 10) && (iXcoord <= x + 10) && (iYcoord >= y - 10) && (iYcoord <= y + 10)) return true; else return false; } } public void init () { addMouseMotionListener(this); myGraph = new ColorCircle[NUM_CIRCLES]; for (int i = 0; i < NUM_CIRCLES; i++) { ColorCircle myVertex = new ColorCircle(); myVertex.setX((int)(Math.random() * (WIDTH-50)));
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: myVertex.setY((int)(Math.random() * (HEIGHT - 100))); myGraph[i] = myVertex; } JOptionPane.showMessageDialog(null, "Try to drag any one of the colored circles ", "Information", JOptionPane.PLAIN_MESSAGE ); } public void paint(Graphics g) { Color myColor = {Color.black, Color.red, Color.blue, Color.green, Color.cyan, Color.orange, Color.yellow}; if (NUM_CIRCLES > 0) for (int i = 0; i < NUM_CIRCLES; i++) { g.setColor(myColor[i]); myGraph[i].paint(g); } } public void mouseDragged(MouseEvent event) { int iX = event.getX(); int iY = event.getY(); for (int i = 0; i < NUM_CIRCLES; i++) if (myGraph[i].selected(iX, iY)) { myGraph[i].setX(iX); myGraph[i].setY(iY); break; } repaint(); } public void mouseMoved(MouseEvent p1) { } }...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern