GUI文本Textrea的复制与粘贴
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package com.yd.cn;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
@SuppressWarnings("serial")
public class Textarea extends JFrame {
private JTextArea text1 = null;
private JTextArea text2 = null;
private JButton copyButton1 = null;
private JButton copyButton2 = null;
public Textarea() {
init();
JPanel pane = new JPanel(null);
getContentPane().add(pane);
JScrollPane s1 = new JScrollPane(text1);
JScrollPane s2 = new JScrollPane(text2);
pane.add(s1);
pane.add(s2);
s1.setBounds(10, 10, 200, 300);
s2.setBounds(260, 10, 200, 300);
getContentPane().add(copyButton2, BorderLayout.NORTH);
getContentPane().add(copyButton1, BorderLayout.SOUTH);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(480, 380);
setLocationRelativeTo(null);
setVisible(true);
}
/**
* 初始化组件对象
*/
private void init() {
text1 = new JTextArea();
text2 = new JTextArea();
copyButton1 = new JButton("左边复制到右边=====>");
copyButton2 = new JButton("<====右边复制到左边");
copyButton1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
copy();
}
});
copyButton2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
copy2();
}
});
}
private void copy() {
text2.setText(text1.getSelectedText());
}
private void copy2() {
text1.setText(text2.getSelectedText());
}
public static void main(String[] args) {
new Textarea();
}
}
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
@SuppressWarnings("serial")
public class Textarea extends JFrame {
private JTextArea text1 = null;
private JTextArea text2 = null;
private JButton copyButton1 = null;
private JButton copyButton2 = null;
public Textarea() {
init();
JPanel pane = new JPanel(null);
getContentPane().add(pane);
JScrollPane s1 = new JScrollPane(text1);
JScrollPane s2 = new JScrollPane(text2);
pane.add(s1);
pane.add(s2);
s1.setBounds(10, 10, 200, 300);
s2.setBounds(260, 10, 200, 300);
getContentPane().add(copyButton2, BorderLayout.NORTH);
getContentPane().add(copyButton1, BorderLayout.SOUTH);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(480, 380);
setLocationRelativeTo(null);
setVisible(true);
}
/**
* 初始化组件对象
*/
private void init() {
text1 = new JTextArea();
text2 = new JTextArea();
copyButton1 = new JButton("左边复制到右边=====>");
copyButton2 = new JButton("<====右边复制到左边");
copyButton1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
copy();
}
});
copyButton2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
copy2();
}
});
}
private void copy() {
text2.setText(text1.getSelectedText());
}
private void copy2() {
text1.setText(text2.getSelectedText());
}
public static void main(String[] args) {
new Textarea();
}
}
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