下面小编就为大家带来一篇java集合遍历的几种方式总结及详细比较。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧集合类的通用遍历方式, 用迭代器迭代:Iterator it = list.iterator();
while(it.hasNext()) {
Object obj = it.next();
}Map遍历方式:1、通过获取所有的key按照key来遍历//Set
简介:下面小编就为大家带来一篇java集合遍历的几种方式总结及详细比较。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧
简介:迭代器模式是与集合共生共死的。一般来说,我们只要实现一个容器,就需要同时提供这个容器的迭代器。使用迭代器的好处是:封装容器的内部实现细节,对于不同的集合,可以提供统一的遍历方式,简化客户端的访问和获取容器内数据。在此基础上,我们可以使用 Iterator 完成对集合的遍历,此外,for 循环和foreach 语法也可以用于遍历集合类。ListIterator 是容器 List容器族特有的双向迭代器。
简介:为了方便例子讲解,现有数组和json对象如下 var demoArr = ['Javascript', 'Gulp', 'CSS3', 'Grunt', 'jQuery', 'angular']; var demoObj = { aaa: 'Javascript', bbb: 'Gulp', ccc: 'CSS3', ddd: 'Grunt', eee: 'jQuery', fff: 'a..
4. JavaScript 各种遍历方式详解,有你不知道的黑科技
简介:为了方便例子讲解,现有数组和json对象如下vardemoArr=['Javascript','Gulp','CSS3','Grunt','jQuery','angular'];vardemoObj={aaa:'Javascript',...
5. javascript 各种遍历方式,有你不知道的黑科技
简介:为了方便例子讲解,现有数组和json对象如下 var demoArr = ['Javascript', 'Gulp', 'CSS3', 'Grunt', 'jQuery', 'angular'];
简介:JS数组的遍历方法有两种: 第一种:一般的for循环,例如: ? 1 2 3 4 var a = new Array("first", "second", "third") for(var i = 0;i < a.length; i++) { document.write(a ...
7. php arrays, array related operations and three array traversal methods
Introduction:: This article mainly introduces php arrays. Students who are interested in PHP tutorials can refer to array-related operations and three array traversal methods.
8. php recursive usage and recursive directory examples_PHP tutorial
Introduction: php recursive usage and recursive directory Example. In PHP, the recursive algorithm is one of the few data traversal methods we have. Let me introduce to you some useful things using recursion. Look at a simple recursive example
9. php recursive usage and recursive directory example
Introduction: in php The recursive algorithm is a data traversal method that we don't have many. Let me introduce to you some useful things using recursion.
10. mssql uses cursor traversal to batch update data
Introduction: mssql uses cursor traversal to batch update update data /* --1. Create test table create TABLE Table1 ( a varchar(10), b varchar(10), c varchar(10), 
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