/**************************************************************
/                       Circumference Applet
/						IKE
/						Started: 6/17/01
/**************************************************************/
  
import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class Circum extends Applet implements ActionListener {
	
    public TextField inputDiam, inputRad, inputResult;
    public Label labelTitle, labelDiam, labelRad, labelResult;    
    
    public Font f;
    public Color newColor = new Color(120, 25, 151);
    public Button b1, b2;

    public double diam, circum, rad;
    public double pi = 3.14159265359;
         
    public Panel p1, p2, p3;
         
    public void init() {
    	
        p1 = new Panel(new GridLayout(1, 1, 0, 0));
        p2 = new Panel(new GridLayout(3, 2, 0, 0));
        p3 = new Panel(new GridLayout(1, 2, 0, 0));
        
        setLayout(new GridLayout(3, 1, 0, 0));
            
	    setBackground(Color.lightGray);
	    setForeground(newColor);
	  
	    f = new Font("Comic Sans MS", Font.BOLD, 10);
	    
	    setFont(f);
	  
		inputDiam = new TextField(6);
		inputDiam.setBackground(Color.white);
	     
	    inputRad = new TextField(6);
	    inputRad.setEditable(false);
	    inputRad.setBackground(Color.white);  
	        
	    inputResult = new TextField(6);
	    inputResult.setEditable(false);
	    inputResult.setBackground(Color.white);
	    
		labelTitle = new Label("                  Circumference Calculator             ");
	    labelDiam = new Label("Enter the Diameter: ");
	    labelRad = new Label("The Radius is: ");
	    labelResult = new Label("The Circumference is:  ");
	    
		b1 = new Button("Calculate");
	    b1.addActionListener(this);
	    b1.setBackground(newColor);
	    b1.setForeground(Color.white);
	    
	    b2 = new Button("Clear");
	    b2.addActionListener(this);
	    b2.setBackground(newColor);
	    b2.setForeground(Color.white);
	          
	    p1.add(labelTitle); 
	    p2.add(labelDiam); p2.add(inputDiam); 
        p2.add(labelRad); p2.add(inputRad);
        p2.add(labelResult); p2.add(inputResult);
    	p3.add(b1); p3.add(b2);
    	
    	add(p1); add(p2); add(p3); 
    	
    }
         
    public void actionPerformed(ActionEvent e) {
    	
        String str;
          str = e.getActionCommand();

            if (str.equals ("Calculate")) {
            
                diam = Integer.parseInt(inputDiam.getText());
                
                circum = diam * pi;
                rad = diam / 2;
                
                  inputRad.setText(rad + "");
                  inputResult.setText(circum + "");
                  
            }     
            else if (str.equals ("Clear")) {
                inputDiam.setText ("");
                inputRad.setText ("");  
		        inputResult.setText ("");  
		    }
		        
		 repaint();        
    }
}