closeAction: function(): Void { java.lang.System.exit( 0 ); }
visible: true
content : BorderPanel {
top: Canvas {
content: [Circle {
centerX: 90, centerY: 70;
radius: bind (x+y)/2;
/* Now the radius of the circle is bound to the expression (x+y)/2. As the value of the
expression changes, the radius of the circle also changes. */
fill: Color.ORANGE
} ]
}
bottom : FlowPanel {
content:[Button {
text: “Increase Radius”
action: function(): Void {
x++;
y++;
}
}]
}
}