查找并选择字符串的问题(与换行有关????) 是的,我以前也遇到过我的解决方法是先将内容保存到一个String中,然后通过String来查找、操作。方法比较笨,呵呵你说的这个问题后来也就没再追究 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 这是我原来的小测试程序import java.awt.*;import java.awt.datatransfer.*;import java.awt.event.*;import java.io.*;public class Note extends Frame implements ActionListener { MenuItem menuFileOpen; MenuItem menuFileClose; MenuItem menuFileSave; MenuItem menuFileSaveAs; MenuItem menuFileExit; MenuItem menuEditPaste; MenuItem menuEditCopy; MenuItem menuEditCut; FileDialog load = new FileDialog(this, "打开文件", FileDialog.LOAD); TextArea a = new TextArea(6, 15); public Note() { load.setVisible(false); add(a, BorderLayout.CENTER); MenuBar menuBar = new MenuBar(); Menu menuFile = new Menu("File"); menuFileExit = new MenuItem("Exit"); menuFileOpen = new MenuItem("Open"); menuFileClose = new MenuItem("Close"); menuFileSave = new MenuItem("Save"); menuFileSaveAs = new MenuItem("Save As..."); Menu menuEdit = new Menu("Edit"); menuEditCopy = new MenuItem("Copy"); menuEditCut = new MenuItem("Cut"); menuEditPaste = new MenuItem("Paste"); menuFile.add(menuFileOpen); menuFile.add(menuFileClose); menuFile.add(menuFileSave); menuFile.add(menuFileSaveAs); menuFile.addSeparator(); menuFile.add(menuFileExit); menuBar.add(menuFile); menuEdit.add(menuEditCopy); menuEdit.add(menuEditCut); menuEdit.add(menuEditPaste); menuBar.add(menuEdit); menuFileExit.addActionListener(this); menuFileOpen.addActionListener(this); menuFileClose.addActionListener(this); menuFileSave.addActionListener(this); menuFileSaveAs.addActionListener(this); menuEditCopy.addActionListener(this); menuEditCut.addActionListener(this); menuEditPaste.addActionListener(this); // Add action listener.for the menu button this.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { dispose(); } }); setTitle("Writer_Panel"); setMenuBar(menuBar); setSize(new Dimension(400, 300)); } public void actionPerformed(ActionEvent ae) { Clipboard clipboard = this.getToolkit().getSystemClipboard(); if(ae.getSource() == menuEditCopy) { String sele = a.getSelectedText(); StringSelection stringselection = new StringSelection(sele); clipboard.setContents(stringselection, null); } if(ae.getSource() == menuEditCut) { int f = a.getSelectionStart(); int e = a.getSelectionEnd(); String tmpstr = a.getText(); String sele = a.getSelectedText(); StringSelection stringselection = new StringSelection(sele); clipboard.setContents(stringselection, null); tmpstr = tmpstr.substring(0, f) + tmpstr.substring(e); a.setText(tmpstr); } if(ae.getSource() == menuEditPaste) { int f = a.getSelectionStart(); int e = a.getSelectionEnd(); String tmpstr = a.getText(); Transferable transferable = clipboard.getContents(this); DataFlavor dataflavor = DataFlavor.stringFlavor; if(transferable.isDataFlavorSupported(dataflavor)) { try { String sele_2 = (String)transferable.getTransferData(dataflavor); tmpstr = tmpstr.substring(0, f) + sele_2 + tmpstr.substring(e); a.setText(tmpstr); } catch(Exception ex) { } } } BufferedReader in; File file; if(ae.getSource() == menuFileExit) { System.exit(0); this.dispose(); } if(ae.getSource() == menuFileClose) { a.setText(""); } if(ae.getSource() == menuFileOpen) { load.setVisible(true); String s = new String(); try { file = new File(load.getDirectory(), load.getFile()); FileReader file_reader = new FileReader(file); in = new BufferedReader(file_reader); while((s = in.readLine()) != null) { a.append(s + '\n'); } in.close(); file_reader.close(); } catch(Exception ex) { } } } public static void main(String args[]) { Note frame = new Note(); frame.setVisible(true); }} 非常感谢以上两位的关注,同时也非常感谢zyg158((DD)One-Time Password System提供的源码,对我有非常大的帮助,谢谢。还请大家帮忙再看看,看是否有解决的办法,无论方法如何,希望大家都能提出自己的意见和相应的解决方法,谢谢 没有现成的api吗?也就是说把一个字符串中匹配的所有子字符串都选中的 楼上的,有那个API吗?我不知道,能不能详细的说明一下呀?? 求了解java抓取网络包 急求解! 阿拉伯语在文件中的显示顺序问题 求ibatis一条SQL语句 请教有经验的朋友,java组件有没有?一次性选择多个图片,然后上传。 帮一个朋友问一下。如何修改weblogic中连接池的名称 struts中进行国际化的问题 请高手帮忙指点下,不胜感激!!!!! 大虾帮忙!如何用java.net包来开发自己的网络协议(如:jms,ftp等) 从数据库中取保存在数据库中图片,并将图片显示在ie的问题---在线等候 求助->关于JConsole端口问题 窗体JFrame的更新----各位仁兄帮忙 ---> 进入 **********新手上路,高分请教
import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.event.*;
import java.io.*;
public class Note extends Frame implements ActionListener {
MenuItem menuFileOpen;
MenuItem menuFileClose;
MenuItem menuFileSave;
MenuItem menuFileSaveAs;
MenuItem menuFileExit;
MenuItem menuEditPaste;
MenuItem menuEditCopy;
MenuItem menuEditCut;
FileDialog load = new FileDialog(this, "打开文件", FileDialog.LOAD);
TextArea a = new TextArea(6, 15); public Note() {
load.setVisible(false);
add(a, BorderLayout.CENTER); MenuBar menuBar = new MenuBar();
Menu menuFile = new Menu("File");
menuFileExit = new MenuItem("Exit");
menuFileOpen = new MenuItem("Open");
menuFileClose = new MenuItem("Close");
menuFileSave = new MenuItem("Save");
menuFileSaveAs = new MenuItem("Save As..."); Menu menuEdit = new Menu("Edit");
menuEditCopy = new MenuItem("Copy");
menuEditCut = new MenuItem("Cut");
menuEditPaste = new MenuItem("Paste"); menuFile.add(menuFileOpen);
menuFile.add(menuFileClose);
menuFile.add(menuFileSave);
menuFile.add(menuFileSaveAs);
menuFile.addSeparator();
menuFile.add(menuFileExit);
menuBar.add(menuFile);
menuEdit.add(menuEditCopy);
menuEdit.add(menuEditCut);
menuEdit.add(menuEditPaste);
menuBar.add(menuEdit); menuFileExit.addActionListener(this);
menuFileOpen.addActionListener(this);
menuFileClose.addActionListener(this);
menuFileSave.addActionListener(this);
menuFileSaveAs.addActionListener(this);
menuEditCopy.addActionListener(this);
menuEditCut.addActionListener(this);
menuEditPaste.addActionListener(this); // Add action listener.for the menu button
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
dispose();
}
}); setTitle("Writer_Panel");
setMenuBar(menuBar);
setSize(new Dimension(400, 300));
} public void actionPerformed(ActionEvent ae) {
Clipboard clipboard = this.getToolkit().getSystemClipboard(); if(ae.getSource() == menuEditCopy) {
String sele = a.getSelectedText();
StringSelection stringselection = new StringSelection(sele);
clipboard.setContents(stringselection, null);
} if(ae.getSource() == menuEditCut) {
int f = a.getSelectionStart();
int e = a.getSelectionEnd();
String tmpstr = a.getText();
String sele = a.getSelectedText();
StringSelection stringselection = new StringSelection(sele);
clipboard.setContents(stringselection, null);
tmpstr = tmpstr.substring(0, f) + tmpstr.substring(e);
a.setText(tmpstr);
} if(ae.getSource() == menuEditPaste) {
int f = a.getSelectionStart();
int e = a.getSelectionEnd();
String tmpstr = a.getText();
Transferable transferable = clipboard.getContents(this);
DataFlavor dataflavor = DataFlavor.stringFlavor; if(transferable.isDataFlavorSupported(dataflavor)) {
try {
String sele_2 = (String)transferable.getTransferData(dataflavor);
tmpstr = tmpstr.substring(0, f) + sele_2 + tmpstr.substring(e);
a.setText(tmpstr);
} catch(Exception ex) {
}
}
} BufferedReader in;
File file; if(ae.getSource() == menuFileExit) {
System.exit(0);
this.dispose();
} if(ae.getSource() == menuFileClose) {
a.setText("");
} if(ae.getSource() == menuFileOpen) {
load.setVisible(true); String s = new String(); try {
file = new File(load.getDirectory(), load.getFile()); FileReader file_reader = new FileReader(file);
in = new BufferedReader(file_reader); while((s = in.readLine()) != null) {
a.append(s + '\n');
} in.close();
file_reader.close();
} catch(Exception ex) {
}
}
} public static void main(String args[]) {
Note frame = new Note();
frame.setVisible(true);
}
}
还请大家帮忙再看看,看是否有解决的办法,无论方法如何,希望大家都能提出自己的意见和相应的解决方法,谢谢
我不知道,能不能详细的说明一下呀??