does queue have pop funcitonality jav code example
Example: java queue
import java.util.*;
Queue<Integer> queue = new LinkedList<Integer>();
// use non-primative types when constructing
// to add a value to the back of queue:
queue.add(7);
// to remove and return front value:
int next = queue.remove();
// to just return front value without removing:
int peek = queue.peek();