问题描述
- java在窗体里面打开任意文件
-
在做毕业设计,我用的是非常落伍的applet,不知道怎么在一个JFrame窗体里面打开任意的文件,
package day.two.show.card;import java.awt.FileDialog;
import java.awt.Frame;
import java.awt.Menu;
import java.awt.MenuBar;
import java.awt.MenuItem;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;/**
- @author Vector
*/
public class FileOpen {
public static void main(String[] args) {
@SuppressWarnings("unused")
myFileDialog dialog = new myFileDialog();
}
}
class myFileDialog extends Frame implements ActionListener {
private static final long serialVersionUID = 1L;
FileDialog fileDialog1, fileDialog2;
MenuBar menuBar;
Menu menu;
MenuItem menuItem1, menuItem2;/** * 对组件进行初始化 */ public myFileDialog() { super("第一天,打开文件"); setSize(300, 300); setVisible(true); menuBar = new MenuBar(); menu = new Menu("文件"); menuItem1 = new MenuItem("保存文件"); menuItem2 = new MenuItem("打开文件"); menuItem1.addActionListener(this); menuItem2.addActionListener(this); menu.add(menuItem1); menu.add(menuItem2); menuBar.add(menu); setMenuBar(menuBar); fileDialog1 = new FileDialog(this, "保存文件对话框", FileDialog.SAVE); fileDialog1.setVisible(false); fileDialog2 = new FileDialog(this, "打开文本文件对话框", FileDialog.LOAD); fileDialog2.setVisible(false); fileDialog1.addWindowListener(new WindowAdapter() { // 匿名内部类 @Override public void windowClosing(WindowEvent e) { super.windowClosing(e); fileDialog1.setVisible(false); } }); fileDialog2.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { super.windowClosing(e); fileDialog2.setVisible(false); } }); addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { super.windowClosing(e); setVisible(false); System.exit(0); } }); } // 重写方法,实现事件的动作 @Override public void actionPerformed(ActionEvent e) { if (e.getSource() == menuItem1) { fileDialog1.setVisible(true); } else if (e.getSource() == menuItem2) { fileDialog2.setVisible(true); } }
}
- @author Vector
时间: 2024-09-20 00:15:57