title: What is the groovy way for doing this initialization?
body: <p>Hi what is the grrovy way of doing this kind of initialization?</p>
  
  <pre><code>for(i=0; i&lt;10; i++)
     for(j=0; j&lt;20; j++)
        for(k=0; k&lt;20; k++)
           m[i][j][k]='a'
  </code></pre>