No. But some programs may not run with out it.
You can enable/download it when needed.
As of 10.7 it will not install Java until you try to use something that needs it. It saves download time and drive space when initially installing the OS.
Basically that is telling you to enable javascript in your browser. Come back with your browser name and someone could tell you how to enable javascript in it.
Well you get java as java and javascript as iava.
Java can be trusted, just enable the script at the prompt.
The latest version of JavaScript is available on the Java website. It is most likely that a user has the most updated version because they are prompted to update if they visit a page with an older version.
Javascript can be enabled or disabled in the browsers settings. You might currently have it turned off.
In general, no you do not need Java or JavaScript to play music on your computer. However, if you want to hear music played by a website, there's a good chance that it uses one of these technologies to do it, in which case you would need Java or a JavaScript enabled browser.
No, Java and JavaScript are nothing to do with each other, JavaScript is a form of EMCAScript, not Java. Every modern browser comes with a JavaScript engine that is used to understand JavaScript. so there is no need for it, no.
The "unsupported major.minor version 52.0" error indicates that your Java version is incompatible with the version required by the client you're trying to run. Specifically, version 52.0 corresponds to Java 8, so if you're using an older version of Java (like Java 7 or earlier), you'll encounter this issue. To resolve it, ensure you have Java 8 or a newer version installed on your Mac and set as the default Java version.
they have java< javascript and flash
Javascript cannot be disabled but java can just go to Control Panel > Sun Java Panel > Disable
There is no systemout object in JavaScript. Do you mean Java?
You can write java script code on any platform be it mac, linux, solaris or windows. All you need is a mac version of notepad, some html page where you insert your java script code and a web browser where you view the html page. All major browsers support java script coding and all you need to do is enable the Java Script support in browsers if it is not enabled already.