title: What does the `Stack=1, Locals=1, Args_size=1` Mean in Java Bytecode?
body: <p>I made a simple class to learn how to read Java byte code. What does the line</p>
  
  <pre><code>Stack=1, Locals=1, Args_size=1
  </code></pre>
  
  <p>mean in the folloiwng code?</p>
  
  <pre><code>public Demo();
    Code:
     Stack=1, Locals=1, Args_size=1
     0:   aload_0
     1:   invokespecial   #1; //Method java/lang/Object."&lt;init&gt;":()V
     4:   return
    LineNumberTable: 
     line 1: 0
  </code></pre>