import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;

public class Test {
public static void main(String[] args) throws Exception {

  String  thisLine = null;
  try{
     // open input stream test.txt for reading purpose.
     BufferedReader br = new BufferedReader("c:/hello.txt");
     while ((thisLine = br.readLine()) != null) {
        System.out.println(thisLine);
     }       
  }catch(Exception e){
     e.printStackTrace();
  }
 }
}

Test.java:12: error: incompatible types: String cannot be converted to Reader
     BufferedReader br = new BufferedReader("c:/hello.txt");
                                            ^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to          get full output
1 error