IO流的简单运用

package IO流;

import java.io.*;

public class put {

public static void main(String[] args) {
// TODO 自动生成的方法存根
File file = new File("data.txt");
String s = "12345abcdef@#%&*软件工程";
try {
FileWriter te = new FileWriter (file);
BufferedWriter out = new BufferedWriter (te);
out.write(s);
out.close();
te.close();

} catch (Exception e) {
e.printStackTrace();
}
try {
FileReader fr = new FileReader(file);
BufferedReader in = new BufferedReader(fr);
String len = in.readLine();
System.out.println("输出文件中的信息："+ len);
in.close();
fr.close();
}catch (Exception e) {
e.printStackTrace();
}
}

}