README.md

Java Code Practice

Repository to practice Java code Heavily inspired by https://github.com/jwasham/coding-interview-university

Arrays

https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html

• Implement an Array List with the following methods:
  • isEmpty() - return true if the list is empty
  • size() - return the number of elements in the list
  • capacity() - return the capacity of the list
  • add(element) - add an element to the end of the list
  • remove(index) - remove an element at the given index
  • get(index) - return the element at the given index
  • set(element, index) - replace an element at the given index

Linked Lists

https://docs.oracle.com/javase/7/docs/api/java/util/LinkedList.html

• Implement a Doubly Linked List with the following methods:
  • isEmpty() - return true if the list is empty
  • size() - return the number of elements in the list
  • add(element, index) - add an element at the specified index
  • addFirst(element) - add an element at the beginning of the list
  • addLast(element) - add an element at the end of the list
  • remove(index) - remove an element at the specified index
  • removeFirst() - remove the first element in the list
  • removeLast() - remove the last element in the list
  • getFirst() - return the first element in the list
  • getLast() - return the last element in the list
  • get(index) - return the element at the given index
  • set(element, index) - replace an element at the given index

Data Structures practice problems

Taken from UC San Diego Coursera course

• Check brackets in code [Stack]
• Extending stack interface [Stack]
• Network packet processing [Queue]
• Maximum sliding window [Stack/Queue]
• Compute tree height [Tree]