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HomeWeb Front-endJS TutorialAre java and javascript the same?

Are java and javascript the same?

Jun 15, 2021 am 11:43 AM
javajavascript

java和javascript不一样,区别为:1、Java被广泛应用于PC端、手机端等,JavaScript则用于嵌入文本到HTML页面;2、Javascript是脚本语言;而Java是新一代面向对象的程序设计语言。

Are java and javascript the same?

本教程操作环境:windows7系统、javascript1.8.5版、Dell G3电脑。

JavaScript和Java的区别:

1、用处不一样:

它们最本质的不同就是用途:Java目前被广泛应用于PC端、手机端、互联网、数据中心等等;

而JavaScript则被主要用于嵌入文本到HTML页面,读写HTML元素,控制cookies等。

2、出身不同:

Javascript与Java是由不同的公司开发的不同产品。Javascript是Netscape公司的脚本语言;而Java是SUN Microsystems 公司推出的新一代面向对象的程序设计语言。

3、嵌入方式不同:

在HTML文档中,两种编程语言的标识不同,Javascript 使用<script></script> 来标识;而 Java 使用 Applet 来标识。

Are java and javascript the same?

Java的特点:

Java看起来设计得很像C++,但是为了使语言小和容易熟悉,设计者们把C++语言中许多可用的特征去掉了,这些特征是一般程序员很少使用的。例如,Java不支持go to语句,代之以提供break和continue语句以及异常处理。Java还剔除了C++的操作符过载(overload)和多继承特征,并且不使用主文件,免去了预处理程序。

因为Java没有结构,数组和串都是对象,所以不需要指针。Java能够自动处理对象的引用和间接引用,实现自动的无用单元收集,使用户不必为存储管理问题烦恼,能更多的时间和精力花在研发上。

【推荐学习:javascript高级教程

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