JBuilder 9 开发一个文本编辑器

save事件处理器中的代码收集到新的 saveFile()方法中，即可从菜单处理器也可从按钮处理器对其调用。

　　// Save current file; handle not yet having a filename; report to statusBar.
　　boolean saveFile() {
　　// Handle the case where we don't have a file name yet.
　　if (currFileName == null) {
　　return saveAsFile();
　　}
　　try
　　{
　　// Open a file of the current name.
　　File file = new File (currFileName);
　　// Create an output writer that will write to that file.
　　// FileWriter handles international characters encoding conversions.
　　FileWriter out = new FileWriter(file);
　　String text = jTextArea1.getText();
　　out.write(text);
　　out.close();
　　this.dirty = false;
　　// Display the name of the saved directory+file in the statusBar.
　　statusBar.setText("Saved to " + currFileName);
　　updateCaption();
　　return true;
　　}
　　catch (IOException e) {
　　statusBar.setText("Error saving " + currFileName);
　　}
　　return false;
　　}

　　建helpAbout()方法

　　对Help

关键词：JBuilder 9 开发一个文本编辑器