output.java.bak

可以实现.txt和.pas文件的词法分析,提供给大家参考和学习

package PL0;

public class OutPut{
	public static void main(String[] args){
		EventDo edo=new EventDo();
	}
	class OpenFile implements ActionListener{
		public void actionPerformed(ActionEvent e){
			JFileChooser chooser=new JFileChooser();
			chooser.addChoosableFileFilter(new MyFileFilter("txt",".txt")); 
			chooser.addChoosableFileFilter(new MyFileFilter("pl0",".pl0"));  
			int choose=chooser.showOpenDialog(EventDo.this);
			if(choose==JFileChooser.APPROVE_OPTION){
				filename.setText(chooser.getSelectedFile().toString());
				try{
					openfile(chooser.getSelectedFile().toString());
					}catch(IOException eb){
				    }
			}
			if(choose==JFileChooser.CANCEL_OPTION){
				errorinfor.append("您取消了打开文件\n");
				errorinfor.append("请您选择一个要编译的文件");
				}
		}
	}	
}