Cannot find symbol?
<p>When I try to compile my code I am getting the error: </p>

<blockquote>
  <p>1 error found:</p>
  
  <p>File: C:\Users\Matthew\Documents\engr
  103\cpu.java  [line: 13]</p>
  
  <p>Error: C:\Users\Matthew\Documents\engr
  103\cpu.java:13: cannot find symbol</p>
  
  <p>symbol  : class BufferReader</p>
  
  <p>location: class cpu</p>
</blockquote>

<p>I've been trying to fix this for a while now, but it's been a while since I used Java, and I have no idea what to do. </p>

<pre><code>import java.io.*;
import java.util.Scanner;



 class cpu{
  public static void main(String []args) throws Exception
  {
    Runtime r =Runtime.getRuntime();

      String f,temp,res="";
      int i=0,j=0;
      f="sensors";
      Process p=r.exec(f);
      BufferedReader pin=new BufferReader(new InputStreamReader(p.getInputStream()));
      while((temp=pin.readLine())!=null)
      {
        System.out.println(temp);
      }
  }
}
</code></pre>
