|
|
//All applets must be declared
public
public class HelloWorld3 extends Applet
implements ActionListener{
//Declare objects
String text;
Font font;
Button button1,button2;
Color color;
//this method does the initializing
public void init(){
text="Hello World";
font=new Font("Helvetica",Font.BOLD,24);
setBackground(Color.black);
//Initialise the buttons, add
actionListener, and add them to the panel
button1=new Button("COLOR GREEN");
button2=new Button("COLOR WHITE");
button1.addActionListener(this);
button2.addActionListener(this);
button1.setActionCommand("green");
button2.setActionCommand("white");
add("North",button1);
add("South",button2);
//Sets the text color to default
white
color=Color.white;
}
//This method must be included
in a class that implements ActionListener
public void actionPerformed(ActionEvent
evt){
if(evt.getActionCommand().equals("green"))
color=Color.green;
else if(evt.getActionCommand().equals("white"))
color=Color.white;
repaint();
}
//This method paints the graphic
to the applet
//in this example only the String
Hello world
//If you want another text,
just change the init method
public void paint(Graphics
g){
//Draws a nice frame for the
String
g.setColor(Color.blue);
g.fillRect(70,45,160,60);
g.setColor(Color.red);
g.fillRect(75,50,150,50);
//Sets the font which the applet
will use to draw the String
g.setFont(font);
//actually paints the string
in position 33,34
g.setColor(color);
g.drawString(text,83,83);
}
}