io流读取文件内容，不给力
import java.io.FileReader;
import java.io.IOException;
public class FileDemo2 {
/**
* @param args
*/
public static void main(String[] args)throws IOException {
FileReader fr=new FileReader("a.txt");
char[] buf=new char[3];
int num=fr.read(buf);
System.out.println(new String(num));
fr.close();
}
}
[解决办法]
import java.io.*;
class IOTest
{
public static void main(String[] args) throws IOException
{
BufferedReader reader =
new BufferedReader(new FileReader("D:\\a.txt"));
String line = null;
while((line=reader.readLine())!=null)
{
System.out.println(line);
}
reader.close();
}
}
