I have to compile a calculator but can't figure out the pathing
<pre><code>javac prog1/Calculator.java
Queue&lt;String&gt; queue = new LinkedListDS(
^
./data_structures/ExpressionEvaluator.java:6: class, interface, or enum expected
while(st.hasMoreTokens()) {
^
</code></pre>

<p>So I have a folder prog1/<br>
                         Calculator.java<br>
                         ExpressionEvaluator.java<br>
                         data_structures/<br>
                                         4 smaller calss files including Queue in data_Structures.</p>

<p>What am I doing wrong?</p>
