do while y variable no reconocida

[mayid]

Soy nuevo en Java y quisiera que me expliquen por favor por qué la variable usada en while no es reconocida:

Código HTML:

do
			{	
				//Scene theScene = theWindow.getScene();

				RadioButtonGroup directionType = new RadioButtonGroup();
				BRadioButton up = new BRadioButton("Up", false, directionType);
				BRadioButton down = new BRadioButton("Down", false, directionType);
				BRadioButton left = new BRadioButton("Left", false, directionType);
				BRadioButton right = new BRadioButton("Right", false, directionType);

				GridContainer directional = new GridContainer(2, 2);
				directional.setDefaultLayout(new LayoutInfo(LayoutInfo.WEST, LayoutInfo.NONE, new Insets(2, 2, 2, 2), null));
				directional.add(up, 0, 0);
				directional.add(down, 0, 1);
				directional.add(left, 1, 0);
				directional.add(right, 1, 1);

				ValueField vertexValueField = new ValueField(45, ValueField.NONNEGATIVE);
				ValueField radiusValueField = new ValueField(1.0, ValueField.NONNEGATIVE);
				ValueField maxErrorValueField = new ValueField(0.05, ValueField.NONNEGATIVE);
				ValueField directionValueField = new ValueField(0.0, ValueField.NONNEGATIVE);

				ComponentsDialog dlg = new ComponentsDialog(theFrame, "TearDrop Tool" ,
				new Widget [] { directional, directionValueField, vertexValueField, radiusValueField, maxErrorValueField },
				new String [] { "Orientation about z-axis: ", "or specific rotation about z-axis (degrees): ", "Vertex angle (degrees): ", "Radius: ", "Max error: " } );

				if (!dlg.clickedOk()) return;

				double theta = vertexValueField.getValue() / 180 * Math.PI;
				double radius = radiusValueField.getValue();
				double maxError = maxErrorValueField.getValue();
				double directionAngle = directionValueField.getValue() / 180 * Math.PI;

				double errorAngle = Math.acos((radius - maxError) / radius); // inverse cosine

				double[B] numberSides [/B]= Math.ceil(((2 * Math.PI) - 2 * (Math.PI / 2 - theta)) / errorAngle); // rounded up

				if (numberSides <= 10)
				new MessageDialog(theFrame, "Please decrease the value of the maximum error");
			} 
			
			while ([B]numberSides [/B]< 10);

El compilador dice: cannot find symbol : variable numberSides

[mayid]

Ah! Ya entendí. El tema es que hay que declarar las variables antes de hacer el bucle. Igual tengo otra consulta:

int numberSides;
double theta;
double radius;
double maxError;
double directionAngle;
double errorAngle;
double phi;
double angle;
double x1;
double y1;
double x2;
double y2;
double x3;
double y3;
double tolerance;

BRadioButton up;
BRadioButton down;
BRadioButton left;
BRadioButton right;

do
{
//Scene theScene = theWindow.getScene();

RadioButtonGroup directionType = new RadioButtonGroup();
up = new BRadioButton(Translate.text("up"), false, directionType);
down = new BRadioButton(Translate.text("down"), false, directionType);
left = new BRadioButton(Translate.text("left"), false, directionType);
right = new BRadioButton(Translate.text("right"), false, directionType);

GridContainer directional = new GridContainer(2, 2);
directional.setDefaultLayout(new LayoutInfo(LayoutInfo.WEST, LayoutInfo.NONE, new Insets(2, 2, 2, 2), null));
directional.add(up, 0, 0);
directional.add(down, 0, 1);
directional.add(left, 1, 0);
directional.add(right, 1, 1);

ValueField vertexValueField = new ValueField(45, ValueField.NONNEGATIVE);
ValueField radiusValueField = new ValueField(1.0, ValueField.NONNEGATIVE);
ValueField maxErrorValueField = new ValueField(0.05, ValueField.NONNEGATIVE);
ValueField directionValueField = new ValueField(0.0, ValueField.NONNEGATIVE);

ComponentsDialog dlg = new ComponentsDialog(theFrame, Translate.text("teardrop") ,
new Widget [] { directional, directionValueField, vertexValueField, radiusValueField, maxErrorValueField },
new String [] { Translate.text("zAxisOrientation") , Translate.text("zAxisRotation") , Translate.text("vertexAngle"), Translate.text("radius"), Translate.text("maxError") } );

if (!dlg.clickedOk()) return;

theta = vertexValueField.getValue() / 180 * Math.PI;
radius = radiusValueField.getValue();
maxError = maxErrorValueField.getValue();
directionAngle = directionValueField.getValue() / 180 * Math.PI;

errorAngle = Math.acos((radius - maxError) / radius); // inverse cosine

numberSides = Math.ceil(((2 * Math.PI) - 2 * (Math.PI / 2 - theta)) / errorAngle); // rounded up

if (numberSides <= 10)
new MessageDialog(theFrame, Translate.text("decreaseMaxError"));
}

while (numberSides < 10);

En el buble como está ahora tengo dos errores de compilación, que tienen que ver con tipos int y float, pero no se como solucionarlo (estoy usando codigo ajeno y soy nuevo en JAVA):

El error está aqui:
numberSides = Math.ceil(((2 * Math.PI) - 2 * (Math.PI / 2 - theta)) / errorAngle); // rounded up

Pero si cambio el tipo de numberSides no se soluciona. Alguien puede precisarme el problema? Y como discernir que tipo (int|float) necesito en cada caso?