给JTextArea添加右键菜单

package jTextarea;import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTextArea;public class 右键菜单JTextArea2405250252 extends JTextArea{/*** */private static final long serialVersionUID = 1L;{/*** 设置右键菜单*/JPopupMenu jPopupMenu = new JPopupMenu("右键菜单Label");JMenuItem jMenuItem粘贴1 = new JMenuItem("粘贴1paste");jMenuItem粘贴1.addActionListener(new ActionListener() {    //匿名内部类@Overridepublic void actionPerformed(ActionEvent e) {右键菜单JTextArea2405250252.this.paste();}});jPopupMenu.add(jMenuItem粘贴1);JMenuItem jMenuItem复制 = new JMenuItem("复制copy");jMenuItem复制.addActionListener(new ActionListener() {    //匿名内部类@Overridepublic void actionPerformed(ActionEvent e) {右键菜单JTextArea2405250252.this.copy();}});jPopupMenu.add(jMenuItem复制);JMenuItem jMenuItem剪切 = new JMenuItem("剪切cut");jMenuItem剪切.addActionListener(event->{ 右键菜单JTextArea2405250252.this.cut(); });    //拉姆达jPopupMenu.add(jMenuItem剪切);JMenuItem jMenuItem粘贴2 = new JMenuItem("粘贴2paste");jMenuItem粘贴2.addActionListener(event->{ 右键菜单JTextArea2405250252.this.paste(); });jPopupMenu.add(jMenuItem粘贴2);JMenuItem jMenuItem全选 = new JMenuItem("全选selectAll");jMenuItem全选.addActionListener(event->{ 右键菜单JTextArea2405250252.this.selectAll(); });jPopupMenu.add(jMenuItem全选);右键菜单JTextArea2405250252.this.add(jPopupMenu);右键菜单JTextArea2405250252.this.addMouseListener(new MouseAdapter() {@Overridepublic void mouseReleased(MouseEvent event) {if (event.isPopupTrigger()) {jPopupMenu.show(右键菜单JTextArea2405250252.this, event.getX(), event.getY());  //在鼠标坐标显示右键菜单}}});}}

package jTextarea;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTextArea;

public class 右键菜单JTextArea2405250252 extends JTextArea{

/*** */
private static final long serialVersionUID = 1L;{/*** 设置右键菜单*/JPopupMenu jPopupMenu = new JPopupMenu("右键菜单Label");JMenuItem jMenuItem粘贴1 = new JMenuItem("粘贴1paste");jMenuItem粘贴1.addActionListener(new ActionListener() {    //匿名内部类@Overridepublic void actionPerformed(ActionEvent e) {右键菜单JTextArea2405250252.this.paste();}});jPopupMenu.add(jMenuItem粘贴1);JMenuItem jMenuItem复制 = new JMenuItem("复制copy");jMenuItem复制.addActionListener(new ActionListener() {    //匿名内部类@Overridepublic void actionPerformed(ActionEvent e) {右键菜单JTextArea2405250252.this.copy();}});jPopupMenu.add(jMenuItem复制);JMenuItem jMenuItem剪切 = new JMenuItem("剪切cut");jMenuItem剪切.addActionListener(event->{ 右键菜单JTextArea2405250252.this.cut(); });    //拉姆达jPopupMenu.add(jMenuItem剪切);JMenuItem jMenuItem粘贴2 = new JMenuItem("粘贴2paste");jMenuItem粘贴2.addActionListener(event->{ 右键菜单JTextArea2405250252.this.paste(); });jPopupMenu.add(jMenuItem粘贴2);JMenuItem jMenuItem全选 = new JMenuItem("全选selectAll");jMenuItem全选.addActionListener(event->{ 右键菜单JTextArea2405250252.this.selectAll(); });jPopupMenu.add(jMenuItem全选);右键菜单JTextArea2405250252.this.add(jPopupMenu);右键菜单JTextArea2405250252.this.addMouseListener(new MouseAdapter() {@Overridepublic void mouseReleased(MouseEvent event) {if (event.isPopupTrigger()) {jPopupMenu.show(右键菜单JTextArea2405250252.this, event.getX(), event.getY());  //在鼠标坐标显示右键菜单}}});
}

}