// Java program to implement Queue// using ArrayDeque classimportjava.util.*;publicclassMain{publicstaticvoidmain(String[]args){Queue<Integer>queue=newArrayDeque<>();queue.add(10);queue.add(20);queue.add(30);queue.add(40);queue.add(50);Iterator itr=queue.iterator();System.out.println("Qu...
There are two most important operations of Queue: enQueue:It is operation when we insert element into the queue. deQueue: It is operation when we remove element from the queue. Read also: Queue implementation using LinkedList in java. Java Program to implement Queue using Array: 1 2 3 4 ...
Example 1: Java program to implement Stack // Stack implementation in Java class Stack { // store elements of stack private int arr[]; // represent top of stack private int top; // total capacity of the stack private int capacity; // Creating a stack Stack(int size) { // initialize...
// Java program to travers a Stack collection// using "foreach" loopimportjava.io.*;importjava.util.*;publicclassMain{publicstaticvoidmain(String[]args){Stack<Integer>stack=newStack<Integer>();stack.push(10);stack.push(20);stack.push(30);stack.push(40);System.out.println("Stack items:...
https://leetcode-cn.com/problems/implement-queue-using-stacks/ 题目描述 使用栈实现队列的下列操作: push(x)-- 将一个元素放入队列的尾部。pop()-- 从队列首部移除元素。peek()-- 返回队列首部的元素。empty()-- 返回队列是否为空。 示例:
Here is the source code of the Java program to Implement ConcurrentSkipListMap API. The Java program is successfully compiled and run on a Linux system. The program output is also shown below. import java.util.Collection; import java.util.Comparator; import java.util.HashMap; import java.util...
Implement the following operations of a queue using stacks. push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front of queue. peek() -- Get the front element. empty() -- Return whether the queue is empty. ...
BlockingQueues do not accept null elements. If we perform any null related operation, it throws NullPointerException. BlockingQueues are used to implement Producer/Consumer based applications. BlockingQueues are thread-safe. All Queues which are available in java.util package are Unbounded Queues an...
In Java,exception handling is one of the strongest mechanisms to handle runtime errors, making program execution smooth and error-free.Java allows developers to handle runtime errors smoothly and ensures resource management, thereby allowing developers to handle run-time errors by using try, catch,...
Here is the source code of the Java Program to Implement Min Hash. The Java program is successfully compiled and run on a Windows system. The program output is also shown below. packagecom.sanfoundry.datastructures; importjava.util.HashMap; ...