title: Programming exercise
body: <p>Hi I have been doing the Javabat exercises and I have found myself in a bit of a snag with this problem:</p>
  
  <p>We'll say that a String is xy-balanced if for all the 'x' chars in the string, there exists a 'y' char somewhere later in the string. So "xxy" is balanced, but "xyx" is not. One 'y' can balance multiple 'x's. Return true if the given string is xy-balanced. </p>
  
  <pre><code>xyBalance("aaxbby") → true
  
  xyBalance("aaxbb") → false
  
  xyBalance("yaaxbb") → false
  </code></pre>
  
  <hr>
  
  <pre><code>public boolean xyBalance(String str) {
  
    if(str.length() &lt; 2){
  
      if(str == "x"){
  
      return false;
  
      }
  
      return true;
  
    }
  
    for (int i = 0 ; i &lt; str.length()- 1;i++){
  
    if (str.charAt(i)=='x' &amp;&amp; str.charAt(i + 1) == 'y'){
  
    return true;
  
    }
  
    }
  
    return false;
  }
  </code></pre>