fileopen.java

在eclipse开发环境下使用java编写的文件阅读器

package file;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.*;
import java.io.*;

public class FileOpen {

	private static Text text;
	public static void main(String[] args) {
		final Display display = Display.getDefault();
		final Shell shell = new Shell();
		shell.setSize(400, 400);
		shell.setText("SWT Application");
		shell.open();

		final Menu menu = new Menu(shell, SWT.BAR);
		shell.setMenuBar(menu);

		final MenuItem fileMenuItem = new MenuItem(menu, SWT.CASCADE);
		fileMenuItem.setText("File");

		final Menu menu_1 = new Menu(fileMenuItem);
		fileMenuItem.setMenu(menu_1);

		final MenuItem openMenuItem = new MenuItem(menu_1, SWT.NONE);
		openMenuItem.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				FileDialog fd = new FileDialog(shell,SWT.OPEN);
				//fd.setFilterPath("c:\\");
				String s = fd.open();
				if(s != null && !s.equals("")){
					FileReader fr;
					try {
						fr = new FileReader(s);
					
						BufferedReader br = new BufferedReader(fr);
						String s1 = br.readLine();
						
						while(s1 != null){
							text.append(s1 + "\n");
							s1 = br.readLine();
						}
						
						br.close();
						fr.close();
					} catch (IOException e1) {
						// TODO 鑷