Java/jsp Learning Series 13 (applet calls JavaScript function) (translate)

The following example of the js| function shows the invocation of a JavaScript function in an applet. One, the applet source code (TMIN_JS.JAVA)

Importations
Import Java.awt.Graphics;
Import java.awt.Event;

LiveConnect for JavaScript
Import Netscape.javascript.JSObject;

public class Tmin_js extends Java.applet.Applet {
Variables

Initialisation de l ' applets
public void init () {//Methode init ()
}

Dessiner l ' Applet
public void Paint (Graphics g) {//Methode paint ()
g.DrawString ("Click here ...", 5, 10);
}

Mouse down
public boolean MouseDown (Event e, int x, int y) {
try {//Create Jsobject
Jsobject.getwindow (This). Eval ("Javascript:ale
RT (' Tmin_js click ' +
"x=" + x + "y=" + y + "')");
}
catch (Exception ex) {//Error on Create Jsobject
Showstatus ("Error call JavaScript err=" + ex);
}
return true;
}

}

Second, the attention of the place

(1) When calling the Javascipt function, add this line:

Jsobject.getwindow (This). Eval (javascript: ...). ") ;

(2) to bring the Jsobject reference in:

Import Netscape.javascript.JSObject;

(3) When the applet is defined to add "Mayscript" Mark

<applet codebase= "./" Code=tmin_js width=80 height=25 mayscript>