字符流读入

package class1;
import java.io.File;
import java.io.FileReader;
import java.io.Reader;
public class ReaderDemo01 {
public static void main(String[] args) throws Exception{
File f = new File("d:" + File.separator + "test.txt") ;
Reader reader = null ;
reader = new FileReader(f) ;
char c[] = new char[1024] ; 
reader.read(c) ;
reader.close();
System.out.println("内容为：" + new String(c));
}
}