Array

Array is most fundamental container to hold multiple elements. It the skeletal part of Array List. In java, array can contain both primitive element or object.

Attribute

• Index
• Value

Routines

The array can be applied to every algorithm. Th Basic question for testing typically array knowledge are following:

• Union or Intersection of Array
• Based on Two Pointers
  • Interleaving
  • Partition
  • Squeeze Rule
• Element Count
  • Count Inversions in an array
  • Count nearest large element
  • Applied with Segment Tree
• Sort
  • Most of Sort algorithm
• Search
  • Binary Search

You can it is almost every where.