package Suchas;
import java.io.*;
public class FileIO
{
public FileIO(String str)
{
File f = new File("data.txt");
try
{
File file = new File("data.txt");
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
bw.write(str);
bw.close();
} catch (IOException e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
String str = "12345abcdef@#%&*软件工程";
new File(str);
}
}
package Suchas;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class Filedemo
{
public Filedemo()
{
File f = new File("data.txt");
try {
BufferedReader br = new BufferedReader(new FileReader(f));
String str = br.readLine();
System.out.println(str);
br.close();
} catch (FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
new Filedemo();
}
}
