TriangleArea java Help!!

Question

I have a coding problem... and if someone can help me finish it.. it would be garetful... i can't make the numbers to respond to the answers...... and try to follow the img says....
Code:
import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
public class TriangleArea extends Applet implements ActionListener {
private Label lblInstructions, lblSideA, lblSideB, lblSideC,
lblSelect, lblAngles, lblArea, lblRightAngle;
private TextField txtSideA, txtSideB, txtSideC;
private Button btnCM, btnM, btnKM;
double[] angles = new double[3];
double radians;
public void init() {
setLayout(null);
setupGUIComponents();
final int WIDTH = 470, HEIGHT = 220;
setSize(WIDTH, HEIGHT);
public void actionPerformed(ActionEvent ae) {
String command = ae.getActionCommand();
lblAngles.setText("Three angles are "+angles[0]+"degree, "+angles[1]+"degree and "+angles[2]+"degree");
lblArea.setText("Area of the triangle is "+command);
lblRightAngle.setText("It is a "+command+" triangle");
private void setupGUIComponents() {
// initiaze the components
lblInstructions = new Label("Enter the length of the sides of a triangle");
lblSideA = new Label("a"); txtSideA = new TextField(5);
lblSideB = new Label("b"); txtSideB = new TextField(5);
lblSideC = new Label("c"); txtSideC = new TextField(5);
lblSelect = new Label("Select unit:");
btnCM = new Button("cm"); btnM = new Button("m"); btnKM = new Button("km");
lblAngles = new Label();
lblArea = new Label();
lblRightAngle = new Label();
// add action-listeners to the buttons
btnCM.addActionListener(this);
btnM.addActionListener(this);
btnKM.addActionListener(this);
// allign the components to the frame
lblInstructions.setBounds(100,10,250,20);
lblSideA.setBounds(100,35,20,20); txtSideA.setBounds(220,35,115,20);
lblSideB.setBounds(100,55,20,20); txtSideB.setBounds(220,55,115,20);
lblSideC.setBounds(100,75,20,20); txtSideC.setBounds(220,75,115,20);
lblSelect.setBounds(130,100,70,20);
btnCM.setBounds(210,100,30,20);
btnM.setBounds(245,100,30,20);
btnKM.setBounds(280,100,30,20);
lblAngles.setBounds(20,140,410,20);
lblArea.setBounds(20,165,410,20);
lblRightAngle.setBounds(20,190,410,20);
// add the components to the frame
add(lblInstructions);
add(lblSideA); add(txtSideA);
add(lblSideB); add(txtSideB);
add(lblSideC); add(txtSideC);
add(lblSelect); add(btnCM); add(btnM); add(btnKM);
add(lblAngles); add(lblArea); add(lblRightAngle);
private double[] getAngles(int a, int b, int c)
// create an array to store the 3 angles
double[] angles = new double[3];
double radians;
// cast all the int values to double
double dA=(double)a, dB=(double)b, dC=(double)c;
// angle A in radians = cos^-1 (b^2 + c^2 - a^2 / 2bc)
// and then convert the radians to degrees
radians = Math.acos((dB*dB + dC*dC - dA*dA) / (2.0*dB*dC));
angles[0] = radians * 180.0 / Math.PI;
// angle B in radians = cos^-1 (a^2 + c^2 - b^2 / 2ac)
// and then convert the radians to degrees
radians = Math.acos((dA*dA + dC*dC - dB*dB) / (2.0*dA*dC));
angles[1] = radians * 180.0 / Math.PI;
// angle C in degrees = 180 - degrees A - degrees B
angles[2] = 180.0 - angles[0] - angles[1];
// return the 3 angles
return angles;

Answer 1

> I have a coding problem... and if someone can help me
finish it.. it would be garetful... i can't make the
numbers to respond to the answers...... and try to
follow the img says....
So Mzbarz, it's a small world, isn't it?
Any particular reason why you didn't continue to post here?
http://forums.devx.com/showthread.php?t=149717&page=2&pp=15
Wasn't I being helpfull enough? The code you got sofar is mostly mine. You havn't done jack untill now, only nagging for copy-n-paste answers.