title: Cannot recognise "import org.junit.Assert" in a java file
body: <p>I have this problem that I cannot understand why it doesn't exist.</p>
  
  <p>Basically, when I compile the following command:</p>
  
  <pre><code>C:\Users\Bill\My Documents\Antbook\ch04&gt; javac -d build\test test\org\example\antbook\junit\SimpleTest.java
  </code></pre>
  
  <p>It gives me an error saying: "java:4 error: Package org.junit does not exist" and same with line 5. Plus, on line 9, it cannot find the "@Test".</p>
  
  <p>Heres, the code:</p>
  
  <pre><code>package org.example.antbook.junit; 
  
  //import JUnit4 classes:
  import static org.junit.Assert.*;
  import org.junit.Test;
  
  public class SimpleTest
  {
      @Test    
      public void testSomething() 
      {
          assertTrue("MULTIPLICATION???", 4 == (2 * 2));
      }
  }
  </code></pre>
  
  <p>Can anyone give any suggestions? Am I meant to copy the jar files containing the Junit classes in to a directory?</p>
  
  <p>Thanks.</p>