lfile.java

来自「java编写的一个网络象棋,通过对方ip连接,开始游戏,同时可以进行聊天,聊天部」· Java 代码 · 共 60 行

package myfile;

import java.io.*;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

public class LFile {
	public static void save(String str){
		System.out.print("保存");
		JFileChooser chooser = new JFileChooser();
		FileWriter fileWriter;
		File file;
		
		chooser.setDialogTitle("保存");
		chooser.showSaveDialog(null);
		file = chooser.getSelectedFile();
		
		try{
			fileWriter = new FileWriter(file);
			fileWriter.write(str);
			fileWriter.close();
		}catch(FileNotFoundException e){
			System.out.println("FileNotFoundException");
		}catch(IOException e){
			System.out.println("IOException");
		}
	}
	
	public static String read(){
		System.out.print("读取");
		JFileChooser chooser = new JFileChooser();
		FileReader fileReader;
		File file;
		
		chooser.setDialogTitle("载入");
		chooser.showDialog(null,"载入");
		
		
		file = chooser.getSelectedFile();
		String str = "";
		
		
		try{
			fileReader = new FileReader(file);
			if(fileReader.read()!=-1){
				BufferedReader br = new BufferedReader(fileReader);
				str = br.readLine();
			}
			fileReader.close();
		}catch(FileNotFoundException e){
			System.out.println("FileNotFoundException");
		}catch(IOException e){
			System.out.println("IOException");
		}
		
		return str;
	}

}