title: How to append a letter to every element in an Array in scala
body: <p>I have a String Array:</p>
  
  <pre><code>  var z:Array[String] =Array("hand", "ball", "eye")
  </code></pre>
  
  <p>i want to append a "s" to every element in z ,</p>
  
  <p>i am new to scala, i can print them with appending 's' :</p>
  
  <pre><code> z.foreach(arg =&gt;println(arg +"s"))
  </code></pre>
  
  <p>but what i am looking for is actually change all the elements in z to have an 's'.</p>