菜单的JAVA代码怎么写 java 菜单

java中的菜单举例的代码:

public static void main ( String args[])

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{

new MenuTest().setVisible(true);

}

}

不要写在另一个方法内。

另外,是这个名称的

PopupMenu pop;

java初学者请教大侠 : 用java 写简单的记事本怎么实现 菜单

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.awt.datatransfer.*;

class MyMenuBar extends MenuBar{

public MyMenuBar(Frame parent){

parent.setMenuBar(this);

}

public void addMenus(String [] menus){

for(int i=0;imenus.length;i++)

add(new Menu(menus[i]));

}

public void addMenuItems(int menuNumber,String[] items){

for(int i=0;iitems.length;i++){

if(items[i]!=null)

getMenu(menuNumber).add(new MenuItem(items[i]));

else getMenu(menuNumber).addSeparator();

}

}

public void addActionListener(ActionListener al){

for(int i=0;igetMenuCount();i++)

for(int j=0;jgetMenu(i).getItemCount();j++)

getMenu(i).getItem(j).addActionListener(al);

}

}

class MyFile{

private FileDialog fDlg;

public MyFile(Frame parent){

fDlg=new FileDialog(parent,"",FileDialog.LOAD);

}

private String getPath(){

return fDlg.getDirectory()+"\\"+fDlg.getFile();

}

public String getData() throws IOException{

fDlg.setTitle("打开");

fDlg.setMode(FileDialog.LOAD);

fDlg.setVisible(true);

BufferedReader br=new BufferedReader(new FileReader(getPath()));

StringBuffer sb=new StringBuffer();

String aline;

while((aline=br.readLine())!=null)

sb.append(aline+'\n');

br.close();

return sb.toString();

}

public void setData(String data) throws IOException{

fDlg.setTitle("保存");

fDlg.setMode(FileDialog.SAVE);

fDlg.setVisible(true);

BufferedWriter bw=new BufferedWriter(new FileWriter(getPath()));

bw.write(data);

bw.close();

}

}

class MyClipboard{

private Clipboard cb;

public MyClipboard(){

cb=Toolkit.getDefaultToolkit().getSystemClipboard();

}

public void setData(String data){

cb.setContents(new StringSelection(data),null);

}

public String getData(){

Transferable content=cb.getContents(null);

try{

return (String) content.getTransferData(DataFlavor.stringFlavor);

//DataFlavor.stringFlavor会将剪贴板中的字符串转换成Unicode码形式的String对象。

//DataFlavor类是与存储在剪贴板上的数据的形式有关的类。

}catch(Exception ue){}

return null;

}

}

class MyFindDialog extends Dialog implements ActionListener{

private Label lFind=new Label("查找字符串");

private Label lReplace=new Label("替换字符串");

private TextField tFind=new TextField(10);

private TextField tReplace=new TextField(10);

private Button bFind=new Button("查找");

private Button bReplace=new Button("替换");

private TextArea ta;

public MyFindDialog(Frame owner,TextArea ta){

super(owner,"查找",false);

this.ta=ta;

setLayout(null);

lFind.setBounds(10,30,80,20);

lReplace.setBounds(10,70,80,20);

tFind.setBounds(90,30,90,20);

tReplace.setBounds(90,70,90,20);

bFind.setBounds(190,30,80,20);

bReplace.setBounds(190,70,80,20);

add(lFind);

add(tFind);

add(bFind);

add(lReplace);

add(tReplace);

add(bReplace);

setResizable(false);

bFind.addActionListener(this);

bReplace.addActionListener(this);

addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

MyFindDialog.this.dispose();

}

});

}//构造函数结束

public void showFind(){

setTitle("查找");

setSize(280,60);

setVisible(true);

}

public void showReplace(){

setTitle("查找替换");

setSize(280,110);

setVisible(true);

}

private void find(){

String text=ta.getText();

String str=tFind.getText();

int end=text.length();

int len=str.length();

int start=ta.getSelectionEnd();

if(start==end) start=0;

for(;start=end-len;start++){

if(text.substring(start,start+len).equals(str)){

ta.setSelectionStart(start);

ta.setSelectionEnd(start+len);

return;

}

}

//若找不到待查字符串,则将光标置于末尾

ta.setSelectionStart(end);

ta.setSelectionEnd(end);

}

public Button getBFind() {

return bFind;

}

private void replace(){

String str=tReplace.getText();

if(ta.getSelectedText().equals(tFind.getText()))

ta.replaceRange(str,ta.getSelectionStart(),ta.getSelectionEnd());

else find();

}

public void actionPerformed(ActionEvent e) {

if(e.getSource()==bFind)

find();

else if(e.getSource()==bReplace)

replace();

}

}

public class MyMemo extends Frame implements ActionListener{

private TextArea editor=new TextArea(); //可编辑的TextArea

private MyFile mf=new MyFile(this);//MyFile对象

private MyClipboard cb=new MyClipboard();

private MyFindDialog findDlg=new MyFindDialog(this,editor);

public MyMemo(String title){ //构造函数

super(title);

MyMenuBar mb=new MyMenuBar(this);

//添加需要的菜单及菜单项

mb.addMenus(new String[]{"文件","编辑","查找","帮助"});

mb.addMenuItems(0,new String[]{"新建","打开","保存",null,"全选"});

mb.addMenuItems(1,new String[]{"剪贴","复制","粘贴","清除",null,"全选"});

mb.addMenuItems(2,new String[]{"查找",null,"查找替换"});

mb.addMenuItems(3,new String[]{"我的记事本信息"});

add(editor); //为菜单项注册动作时间监听器

mb.addActionListener(this);

addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

MyMemo.this.dispose();

}

}); //分号不能忘了

} //构造函数完

public void actionPerformed(ActionEvent e){

String selected=e.getActionCommand(); //获取菜单项标题

if(selected.equals("新建"))

editor.setText("");

else if(selected.equals("打开")){

try{

editor.setText(mf.getData());

}catch(IOException ie){}

}

else if(selected.equals("保存")){

try{

mf.setData(editor.getText());

}catch(IOException ie){}

}

else if(selected.equals("退出")){

dispose();

}

else if(selected.equals("剪贴")){

//将选中的字符串复制到剪贴板中并清除字符串

cb.setData(editor.getSelectedText());

editor.replaceRange("",editor.getSelectionStart(),editor.getSelectionEnd());

}

else if(selected.equals("复制")){

cb.setData(editor.getSelectedText());

}

else if(selected.equals("粘贴")){

String str=cb.getData();

editor.replaceRange(str,editor.getSelectionStart(),editor.getSelectionEnd());

//粘贴在光标位置

}

else if(selected.equals("清除")){

editor.replaceRange("",editor.getSelectionStart(),editor.getSelectionEnd());

}

else if(selected.equals("全选")){

editor.setSelectionStart(0);

editor.setSelectionEnd(editor.getText().length());

}

else if(selected.equals("查找")){

findDlg.showFind();

}

else if(selected.equals("查找替换")){

findDlg.showReplace();

}

}

public static void main(String[] args){

MyMemo memo=new MyMemo("记事本");

memo.setSize(650,450);

memo.setVisible(true);

}

}

参考这个程序吧。有不懂的可以找我。呵呵

java的菜单代码怎么写?

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class MyMenu extends JFrame{

JMenuBar jmbar=new JMenuBar();

JMenu jmenu=new JMenu("颜色");

JMenuItem jmt1=new JMenuItem("红色"),

jmt2=new JMenuItem("黄色"),

jmt3=new JMenuItem("蓝色");

JPanel jp=new JPanel();

MyMenu(){

setTitle("菜单测试");

setSize(400,300);

setJMenuBar(jmbar);

jmbar.add(jmenu);

jmenu.add(jmt1);

jmenu.add(jmt2);

jmenu.add(jmt3);

add(jp);

jmt1.addActionListener(new MenuAction(this));

jmt2.addActionListener(new MenuAction(this));

jmt3.addActionListener(new MenuAction(this));

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setVisible(true);

}

public static void main(String[] args) {

new MyMenu();

}

}

class MenuAction implements ActionListener{

MyMenu m;

MenuAction(MyMenu m){

this.m=m;

}

public void actionPerformed(ActionEvent e){

String color=e.getActionCommand();

if(color=="红色")m.jp.setBackground(Color.red);

else if(color=="黄色")m.jp.setBackground(Color.yellow);

else if(color=="蓝色")m.jp.setBackground(Color.blue);

}

}

不知道你要什么事件代码,我写了个比较简单的你看适合不。

用java编写一个菜单,要源代码

import java.awt.Frame;

import java.awt.Menu;

import java.awt.MenuBar;

import java.awt.MenuItem;

import java.awt.MenuShortcut;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;public class Test_11 extends Frame implements ActionListener{ /**

* @param args

*/

MenuBar mb = null;

Menu m = null;

MenuItem mi = null; public Test_11() {

this.setBounds(100, 100, 400, 300);

this.setVisible(true);

mb = new MenuBar();

m = new Menu("文件");

mi = new MenuItem("打开");

mi.setShortcut(new MenuShortcut(KeyEvent.VK_O));

m.add(mi);

mb.add(m);

setMenuBar(mb);

mi.addActionListener(this);

this.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

} public static void main(String[] args) {

// TODO Auto-generated method stub

new Test_11();

} @Override

public void actionPerformed(ActionEvent arg0) {

System.exit(0);

}}

通用菜单的简单JAVA程序

import javax.swing.*;

import java.awt.*;

public class MenuBarOne extends JFrame

{

JPanel jp=new JPanel();

JMenuBar menubar=new JMenuBar();

JMenu menu1=new JMenu("菜单");

JMenu menu2=new JMenu("菜单");

JMenu menu3=new JMenu("菜单");

JMenuItem item1=new JMenuItem("菜单项");

JMenuItem item2=new JMenuItem("菜单项");

JMenuItem item3=new JMenuItem("菜单项");

JMenuItem item4=new JMenuItem("菜单项");

JMenuItem item5=new JMenuItem("菜单项");

JMenuItem item6=new JMenuItem("菜单项");

public MenuBarOne()

{

jp.setLayout(new BorderLayout());

menu1.add(item1);

menu1.add(item2);

menu1.add(item3);

menu2.add(item4);

menu2.add(item5);

menu3.add(item6);

menubar.add(menu1);

menubar.add(menu2);

menubar.add(menu3);

jp.add(menubar,BorderLayout.NORTH);

this.add(jp);

this.setTitle("菜单示意");

this.setBounds(100,100,280,200);

this.setVisible(true);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public static void main(String[] args)

{

new MenuBarOne();

}

}

很简单,就是个菜单框架.

java菜单怎么写?

希望有用吧

package mm;

import java.io.*;

import java.awt.*;

import javax.swing.*;

public class HelloWorld {

public static void main(String[] args){

JFrame w=new JFrame("SKH");

Container con=w.getContentPane();

//Color

con.setBackground(Color.pink);

//Location

w.setBounds(60, 100, 388, 308);

//可见性

w.setVisible(true);

//单击右上角容器的行为

w.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//创建菜单项

JMenuBar menubar=new JMenuBar();

JMenu menu,submenu;

JMenuItem a,b;

menu=new JMenu("菜单");

submenu=new JMenu("子菜单");

a=new JMenuItem("菜单项1");

b=new JMenuItem("菜单项2");

menu.add(a);

//添加分割符;

menu.addSeparator();

menu.add(b);

menu.addSeparator();

menu.add(submenu);

submenu.add(new JMenuItem("QWQ"));

menubar.add(menu);

w.setJMenuBar(menubar);

}

}


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