[java-list] =?iso-8859-1?Q?aparecer_os_pain=E9is?=

luizbarbosa Fri, 04 Apr 2003 07:02:01 -0800

Estou com dificuldades para aparecer os painéis quando pressiono o botão.

Obrigador

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class Teste extends Applet implements ActionListener
{
Panel p1,p2,p3,p0;
Choice c1,c2;
Button b1,b2,b3;
TextField t1;

public void init()
{
    // The first Card
    p1 = new myPanel(new Color(0).red,new FlowLayout(),100,100);
    Choice c1 = new Choice();
    c1.addItem("Option 1");
    c1.addItem("Option 2");
    p1.add(c1);

    // The second Card
    p2 = new myPanel(new Color(0).blue,new FlowLayout(),100, 100);
    c2 = new Choice();
    c2.addItem("Option A");
    c2.addItem("Option B");
    c2.addItem("Option C");
    p2.add(c2);

    // the third Card
    p3 = new myPanel(new Color(0).black,new FlowLayout(),100, 100);
    t1 = new TextField(8);
    t1.setBackground(new Color(0).white);
    p3.add(t1);

    // Main card (receive the other)
    p0 = new myPanel(new Color(0).white,new CardLayout(0,0),100,100);
    setLayout(new FlowLayout());
    add(p0);

    // Add cards

    p0.add("First card", p1);
    p0.add("2nd card", p2);
    p0.add("3rd card", p3);

    add(b1 = new Button("card 1"));
    add(b2 = new Button("card 2"));
    add(b3 = new Button("card 3"));

    b1.addActionListener(this);
    b2.addActionListener(this);
    b3.addActionListener(this);
}

public void actionPerformed(Event e)
{
    if (e.target == b1)
    {
      //Show the first list
     ((CardLayout)p0.getLayout()).show(p0, "First card");

    }
    else
      if (e.target == b2)
      {
        //Show the second list
        ((CardLayout)p0.getLayout()).show(p0, "2nd card");

      }
      else
        if (e.target == b3)
        {
          //Show the third list
          ((CardLayout)p0.getLayout()).show(p0, "3rd card");

}
}
}

class myPanel extends Panel
{
int w;
int h;

myPanel(Color co, LayoutManager la, int width, int height)
{
    super();
    w = width;
    h = height;
    setBackground(co);
    setLayout(la);
}

public Dimension setSize()
{
    return new Dimension(w,h);
}
}

[java-list] =?iso-8859-1?Q?aparecer_os_pain=E9is?=

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