A deque is a double-ended queue. You could insert and delete items from both ends. Operations supported on deque: insertFront() : adds an item at front of the deque insertLast(): adds an item at the rear of the deque removeFront():… Read More!
If you check our previous article Queue Example with count approach, the field nElements in MyQueue class imposes slight overhead on the insert() and remove() methods as these methods increments and decrements this variable. When you deal with huge number of… Read More!
To understand the concept of Circular Queue (Front and Rear arrows wrap around), consider the Queue Implementation Example and make the following changes. First comment out the following lines in MyQueue class, Basically what you are doing is commenting out the logic… Read More!
Queue is more abstract entity like stack than array and many other data structures. The underlying mechanism used to implement queues is not visible to the user. In queue first item inserted would be the first one to be removed… Read More!
In previous article Stack introduction and implementation we had learnt how to implement stack in java and in our first example Stack Example 1 we have seen how to use stack to reverse a word or a string. Stacks are commonly used… Read More!
