写个方法去改变TextField内容就可以了,在button触发的时候调用。-------------------------------继承JFrame---------------------------------------import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;public class TestFrame extends JFrame {
JButton button_1, button_2; //两个按钮
JPanel pane; //放两个按钮的JPanel
TestPane testPane; //继承JPanel的类,类中有个JTextField
int i = 0; //点按钮的次数
/**
* 构造
*/
public TestFrame() {
testPane = new TestPane();
button_1 = new JButton("按钮_1");
button_2 = new JButton("按钮_2");
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
i++;
testPane.setPaneText("响应——" + i);
}
});
pane = new JPanel(); //将两个按钮加入pane
pane.add(button_1);
pane.add(button_2);
this.getContentPane().add(testPane); //加入继承自JPanel的类
this.getContentPane().add(pane, BorderLayout.NORTH); //将带有两个按钮的pane加入frame
this.setSize(300,200);
this.setVisible(true);
} public static void main(String[] args) {
new TestFrame();
}
}----------------------------------------继承JPanel------------------------------import javax.swing.JPanel;
import javax.swing.JTextField;public class TestPane extends JPanel {
JTextField text;
/**
* 构造
*/
public TestPane() {
text = new JTextField(10);
this.add(text);
}
/**
* 设置TestPane中JTextField的文字
* @param str 字符串
*/
public void setPaneText(String str){
text.setText(str);
}
}
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;public class TestFrame extends JFrame {
JButton button_1, button_2; //两个按钮
JPanel pane; //放两个按钮的JPanel
TestPane testPane; //继承JPanel的类,类中有个JTextField
int i = 0; //点按钮的次数
/**
* 构造
*/
public TestFrame() {
testPane = new TestPane();
button_1 = new JButton("按钮_1");
button_2 = new JButton("按钮_2");
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
i++;
testPane.setPaneText("响应——" + i);
}
});
pane = new JPanel(); //将两个按钮加入pane
pane.add(button_1);
pane.add(button_2);
this.getContentPane().add(testPane); //加入继承自JPanel的类
this.getContentPane().add(pane, BorderLayout.NORTH); //将带有两个按钮的pane加入frame
this.setSize(300,200);
this.setVisible(true);
} public static void main(String[] args) {
new TestFrame();
}
}----------------------------------------继承JPanel------------------------------import javax.swing.JPanel;
import javax.swing.JTextField;public class TestPane extends JPanel {
JTextField text;
/**
* 构造
*/
public TestPane() {
text = new JTextField(10);
this.add(text);
}
/**
* 设置TestPane中JTextField的文字
* @param str 字符串
*/
public void setPaneText(String str){
text.setText(str);
}
}
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;public class TestFrame extends JFrame {
JButton button_1, button_2; //两个按钮
JPanel pane; //放两个按钮的JPanel
TestPane testPane; //继承JPanel的类,类中有个JTextField
int i = 0; //按钮_1 点击的次数
int i_2 = 0; //测试按钮 点击的次数
TestPane_2 testPane_2; //继承JPanel的类,存放另外一个放按钮
/**
* 构造
*/
public TestFrame() {
testPane = new TestPane();
testPane_2 = new TestPane_2();
button_1 = new JButton("按钮_1");
button_2 = new JButton("按钮_2");
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
i++;
testPane.setPaneText("响应 按钮_1 ——" + i);
}
});
testPane_2.getButton().addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
i_2++;
testPane.setPaneText("响应 测试按钮 ——" + i_2);
}
});
pane = new JPanel(); //将两个按钮加入pane
pane.add(button_1);
pane.add(button_2);
this.getContentPane().add(testPane); //加入继承自JPanel的类
this.getContentPane().add(pane, BorderLayout.NORTH); //将带有两个按钮的pane加入frame
this.getContentPane().add(testPane_2, BorderLayout.SOUTH);
this.setSize(300,200);
this.setVisible(true);
} public static void main(String[] args) {
new TestFrame();
}
}------------------------------------继承JPanel------------------------------import javax.swing.JPanel;
import javax.swing.JTextField;public class TestPane extends JPanel {
JTextField text;
/**
* 构造
*/
public TestPane() {
text = new JTextField(15);
this.add(text);
}
/**
* 设置TestPane中JTextField的文字
* @param str 字符串
*/
public void setPaneText(String str){
text.setText(str);
}
}--------------------------------继承JPanel含有按钮----------------------------import javax.swing.JPanel;
import javax.swing.JButton;public class TestPane_2 extends JPanel {
JButton button; public TestPane_2() {
button = new JButton("测试按钮");
this.add(button);
}
/**
* 得到这个容器中的按钮
* @return 按钮
*/
public JButton getButton(){
return button;
}
}