用java写一个背单词的小程序(本地文本)

package Recite;

import java.awt.FlowLayout;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JFrame;
import javax.swing.JLabel;

public class Recite extends JFrame{
	JLabel lblWord = new JLabel("word"); //JLabel 标签
	JLabel lblMeaning = new JLabel("meaning");
	
	public void init() {
		//GUI初始化
		setSize(400,300);
		setLayout(new FlowLayout());//FlowLayout是排版格式，这行放不下放下一行
		getContentPane().add(lblWord);
		getContentPane().add(lblMeaning);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setVisible(true);
	}
	
	
	public void readAll() throws IOException
	{
		
		String fileName = "F:\\JAVA\\project\\Recite\\src\\words.txt";
		String charset = "GBK";
	
		BufferedReader reader = 
				new BufferedReader(
						new InputStreamReader(
								new FileInputStream(fileName),charset
								));	

		String line;
		while((line = reader.readLine()) != null)
		{
			
			line = line.trim();//去掉首尾的空格
			if(line.length() == 0)continue;
			int idx = line.indexOf("\t");
			words.add(line.substring(0,idx));
			meanings.add(line.substring(idx + 1));
		}
	}
	
	
	
	List<String> words = new ArrayList<>();
	List<String> meanings = new ArrayList<>();
	int current = 0;
	public void start() {
		new Thread( ()->{
			try {
				readAll();
			}
			catch(FileNotFoundException ef){
				System.out.println("file not founded");
				
			}
			
			catch(IOException e)
			{
				System.out.println("???");
			}
			
			new javax.swing.Timer(1000,(e)->
			    {
					lblWord.setText(words.get(current));
					lblMeaning.setText(meanings.get(current));
					current++;
					if(current == 2)
					{
						current = 0;
					}
				}
					
					             ).start();
		}				
				).start();
	}
	
	

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Recite f = new Recite();
		f.init(); //界面初始化
		f.start();
	}

}