title: Obj c editing array
body: <p>i have an array like this:</p>
  
  <pre><code>array[0] = @"object0"
  array[1] = @"object1"
  array[2] = @"object2"
  array[3] = @"object3"
  </code></pre>
  
  <p>And:
  1.How to delete one object, for example array[1] and get this:</p>
  
  <pre><code>array[0] = @"object0"
  array[1] = @"object1"
  array[2] = @"object2"
  </code></pre>
  
  <p>2.How to move object to other index, for example 3->1</p>
  
  <pre><code>array[0] = @"object0"
  array[1] = @"object3"
  array[2] = @"object2"
  array[3] = @"object1"
  </code></pre>