两个JFramen之间的通信

来源：互联网发布：算法导论视频教程编辑：程序博客网时间：2024/06/04 18:42

主要是将JFrame2 变成JFrame1的成员变量我自己写的因为应用到数据库内容较多所以删减了很多没有测试运行目测是没有问题的

import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.*;public class JFrame1 extends JFrame{private static final long serialVersionUID = 1L;private JFrame12 adqJF=null;private JButton JF2JB;private String sql="";public JFrame1() {setTitle("JFrame通信");setBounds(300, 240, 1434, 730);JF2JB =new JButton("JFrame2");JF2JB.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e) {if(adqJF==null)adqJF = new JFrame12();elseadqJF.setVisible(true);if(adqJF.getSQL()!=null){setSQL(adqJF.getSQL());}}});setVisible(true);}void setSQL(String sql){this.sql=sql;}String getSQL(){return this.sql;}class JFrame12 extends JFrame{private static final long serialVersionUID = 1L;private String sql;public JFrame12(){setTitle("JF2");setSize(300, 351);setLocationRelativeTo(null);setResizable(false);setVisible(true);}String getSQL(){return this.sql;}void setSQL(String sql){this.sql="通信";}void setVisibleF(){setVisible(false);}}public void main(String arg[]){new JFrame1();}}

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