一个例子, 参考下;

把第一个panelright.remove(firstpanel);

package baidu;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

class panel1 extends jpanel {

public panel1() {

setlayout(new gridbaglayout());

gridbagconstraints c = new gridbagconstraints();

c.gridx = 0;

c.gridy = 0;

add(new jbutton("test0001"), c);

c.gridx = 0;

c.gridy = 1;

add(new jbutton("test0002"), c);

c.gridx = 1;

c.gridy = 1;

add(new jbutton("test0003"), c);

}

}

class panel2 extends jpanel {

public panel2() {

setlayout(new gridbaglayout());

gridbagconstraints c = new gridbagconstraints();

c.gridx = 1;

c.gridy = 0;

add(new jbutton("try0001"), c);

c.gridx = 2;

c.gridy = 0;

add(new jbutton("try0002"), c);

c.gridx = 0;

c.gridy = 1;

add(new jbutton("try0003"), c);

}

}

public class jpanelstudy extends jframe implements actionlistener {

private jpanel panelleft = new jpanel();

private jpanel panelright = new jpanel();

panel1 firstpanel = new panel1();

panel2 secondpane = new panel2();

public jpanelstudy() {

jpanel contentpane = (jpanel) getcontentpane();

contentpane.add(panelleft, borderlayout.west);

contentpane.add(panelright, borderlayout.center);

jbutton button1 = new jbutton("button1");

button1.addactionlistener(this);

jbutton button2 = new jbutton("button2");

button2.addactionlistener(this);

panelleft.add(button1);

panelleft.add(button2);

}

public void actionperformed(actionevent event) {

jbutton button = (jbutton) event.getsource();

if (button.gettext().equals("button1")) {

panelright.add(firstpanel);

panelright.revalidate();

panelright.setvisible(true);

} else {

system.out.println("ok");

panelright.remove(firstpanel);

panelright.add(secondpane);

panelright.revalidate();

}

}

public final static void main(string[] args) {

jframe frame = new jpanelstudy();

frame.setdefaultcloseoperation(jframe.exit_on_close);

frame.setsize(400, 300);

frame.setvisible(true);

}

}

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