Update SortedArray.java

Author: Markus28

Java-Data-Structures/Utils/SortedArray.java

@@ -21,11 +21,11 @@ public boolean exists(T obj)
 
  protected int approximateSearchBasic(T obj, int lower, int upper)
  {
- int i = arr.length/2;
+ int i = (lower + upper)/2;
 
  while(upper >= lower)
  {
- if(arr[i] == obj)
+ if(arr[i].equals(obj))
  {
  return i;
  }