Java beans na koji nacin
Molim vas a mi neko kaze na koji nacin da sljedeci kod implementiam pomocu java beansa
Code:
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class radar extends javax.swing.JFrame {
private static int step = 50, count = 0;
public int precnik, plot, t1xsm = 1, t1ysm = 1, t2xsm = -1, t2ysm = 1, t3xsm = -1, t3ysm = -1;
public float fade = 1.0f, crt1 = 0.5f, crt2 = 0.5f, crt3 = 0.5f;
public double tx, ty, tugao, tug, ugao = 0, ut1, ut2, ut3;
Insets pomak;
Color xcolor, zcolor;
Point lt = new Point(0, 0);
Point t1 = new Point(50, 100);
Point t2 = new Point(400, 80);
Point t3 = new Point(500, 500);
Point rt1 = new Point(0, 0);
Point rt2 = new Point(0, 0);
Point rt3 = new Point(0, 0);
Point min = new Point(0, 0);
Point max = new Point(400, 400);
Point kcentar = new Point(0, 0);
Point centar = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();
public radar() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setBounds(centar.x - 300, centar.y - 300, 600, 600);
this.setTitle("AWT demo: Radar");
TimerTask scan = new TimerTask() {
public void run() {
ugao = ugao + 1;
if (ugao == 360) { ugao = 0; }
count++;
if (count == 80) {
t1.x = t1.x + 4 * t1xsm;
t1.y = t1.y + 8 * t1ysm;
t2.x = t2.x + 6 * t2xsm;
t2.y = t2.y + 2 * t2ysm;
t3.x = t3.x + 3 * t3xsm;
t3.y = t3.y + 5 * t3ysm;
count = 0;
}
if (t1.x < min.x) {
t1.x = min.x + (min.x - t1.x);
t1xsm = 1;
}
if (t1.x > max.x) {
t1.x = max.x - (t1.x - max.x);
t1xsm = -1;
}
if (t1.y < min.y) {
t1.y = min.y + (min.y - t1.y);
t1ysm = 1;
}
if (t1.y > max.y) {
t1.y = max.y - (t1.y - max.y);
t1ysm = -1;
}
if (t2.x < min.x) {
t2.x = min.x + (min.x - t2.x);
t2xsm = 1;
}
if (t2.x > max.x) {
t2.x = max.x - (t2.x - max.x);
t2xsm = -1;
}
if (t2.y < min.y) {
t2.y = min.y + (min.y - t2.y);
t2ysm = 1;
}
if (t2.y > max.y) {
t2.y = max.y - (t2.y - max.y);
t2ysm = -1;
}
if (t3.x < min.x) {
t3.x = min.x + (min.x - t3.x);
t3xsm = 1;
}
if (t3.x > max.x) {
t3.x = max.x - (t3.x - max.x);
t3xsm = -1;
}
if (t3.y < min.y) {
t3.y = min.y + (min.y - t3.y);
t3ysm = 1;
}
if (t3.y > max.y) {
t3.y = max.y - (t3.y - max.y);
t3ysm = -1;
}
repaint();
}
};
Timer Xtimer = new Timer();
Xtimer.schedule(scan, 0, step);
}
public void paint(Graphics g) {
if (pomak == null) { pomak = getInsets(); }
precnik = getHeight() - pomak.top - pomak.bottom - 30;
kcentar.x = getWidth()/2;
kcentar.y = (getHeight() + pomak.top)/2;
min.x = kcentar.x - precnik/2 - 10;
min.y = kcentar.y - precnik/2 - 10;
max.x = kcentar.x + precnik/2 + 10;
max.y = kcentar.y + precnik/2 + 10;
g.setColor (Color.BLACK);
g.fillRect(0, 0, getWidth(), getHeight());
tug = (360 - ugao) / 180 * Math.PI;
tugao = (ugao - 90) / 180;
plot = 0;
while ( plot < 31) {
xcolor = Color.getHSBColor(0.41f, 0.9f, fade);
g.setColor (xcolor);
tx = Math.cos(tugao * Math.PI) * precnik/2 + kcentar.x;
ty = Math.sin(tugao * Math.PI) * precnik/2 + kcentar.y;
lt.x = (int) tx;
lt.y = (int) ty;
g.drawLine(lt.x, lt.y, kcentar.x, kcentar.y);
plot++;
tugao = tugao - 0.0015f;
fade = fade - 0.03f;
}
fade = 1.0f;
ut1 = Math.atan2(kcentar.x - t1.x, kcentar.y - t1.y);
if (ut1 < 0) { ut1 = 2 * Math.PI + ut1; }
if (ut1 > (tug - 0.02f)) {
if (ut1 < tug ) {
crt1 = 1.0f;
rt1.x = t1.x;
rt1.y = t1.y;
}
}
zcolor = Color.getHSBColor(0.41f, 0.9f, crt1);
g.setColor (zcolor);
if (precnik/2 > Math.sqrt(Math.pow(kcentar.x - rt1.x, 2) + Math.pow(kcentar.y - rt1.y, 2))) {
g.fillOval (rt1.x, rt1.y, 4, 4);
g.drawString("F18A", rt1.x + 4, rt1.y);
}
ut2 = Math.atan2(kcentar.x - t2.x, kcentar.y - t2.y);
if (ut2 < 0) { ut2 = 2 * Math.PI + ut2; }
if (ut2 > (tug - 0.02f)) {
if (ut2 < tug ) {
crt2 = 1.0f;
rt2.x = t2.x;
rt2.y = t2.y;
}
}
zcolor = Color.getHSBColor(0.41f, 0.9f, crt2);
g.setColor (zcolor);
if (precnik/2 > Math.sqrt(Math.pow(kcentar.x - rt2.x, 2) + Math.pow(kcentar.y - rt2.y, 2))) {
g.fillOval (rt2.x, rt2.y, 4, 4);
g.drawString("MIG29", rt2.x + 4, rt2.y);
}
ut3 = Math.atan2(kcentar.x - t3.x, kcentar.y - t3.y);
if (ut3 < 0) { ut3 = 2 * Math.PI + ut3; }
if (ut3 > (tug - 0.02f)) {
if (ut3 < tug ) {
crt3 = 1.0f;
rt3.x = t3.x;
rt3.y = t3.y;
}
}
zcolor = Color.getHSBColor(0.41f, 0.9f, crt3);
g.setColor (zcolor);
if (precnik/2 > Math.sqrt(Math.pow(kcentar.x - rt3.x, 2) + Math.pow(kcentar.y - rt3.y, 2))) {
g.fillOval (rt3.x, rt3.y, 4, 4);
g.drawString("B747", rt3.x + 4, rt3.y);
}
crt1 = crt1 - 0.002f;
if (crt1 <= 0) { crt1 = 0.002f; }
crt2 = crt2 - 0.002f;
if (crt2 <= 0) { crt2 = 0.002f; }
crt3 = crt3 - 0.002f;
if (crt3 <= 0) { crt3 = 0.002f; }
zcolor = Color.getHSBColor(0.41f, 0.9f, 1.0f);
g.setColor (zcolor);
g.drawOval(kcentar.x - precnik/2, kcentar.y - precnik/2, precnik, precnik);
g.drawOval(kcentar.x - 3*precnik/8, kcentar.y - 3*precnik/8, 3*precnik/4, 3*precnik/4);
g.drawOval(kcentar.x - precnik/4, kcentar.y - precnik/4, precnik/2, precnik/2);
g.drawOval(kcentar.x - precnik/8, kcentar.y - precnik/8, precnik/4, precnik/4);
g.drawLine(0, kcentar.y, getWidth(), kcentar.y);
g.drawLine(kcentar.x, 0, kcentar.x, getHeight());
}
public static void main(String args[]) {
try {
new radar().setVisible(true);
}
catch (Exception e) {
System.out.println(e.toString());
}
}
}
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