JAVA，

JAVA，

vpackage liU11;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class LIU {
public static void main(String[] args) throws IOException {
new File("D:/HelloWorld.java");
FileReader fis=new FileReader("D:/HelloWorld.java");
int i;
while((i=fis.read())!=-1){
System.out.print((char)i);
}
fis.close();
FileReader fis1= null;
try {
fis1 = new FileReader("D:/HelloWorld.java");
} catch(FileNotFoundException e){
e.printStackTrace();
}
BufferedReader bf=new BufferedReader(fis1);
String s = null;
try{
while((s=bf.readLine())!=null){
System.out.println(s);
}
}catch ( IOException e){
e.printStackTrace();
}

}

}