title: Algorithm for testing all mathematical order
body: <p>I want to implement, that the User can input a Array of <code>int</code>s (<code>int[]</code>), and a desired <code>target</code>.</p>
  <p>Then the program should be able to test <em>all possibilities</em> in <em>add</em>, <em>subtract</em>, <em>multiply</em> and <em>divide</em>, and return true, if any possibilities are given.</p>
  <p><strong>Example:</strong></p>
  <pre><code>int[] = {1, 4, 6, 3}, target = 8
  </code></pre>
  <p>(Program test everything, from <code>1+4+6+3</code> till <code>1/4/6/3</code>)</p>
  <p><strong>Desired result</strong></p>
  <pre><code>1+4+6-3 
  </code></pre>
  <p>is the correct answer, since <code>1+4+6-3 == 8</code></p>