Why do I need Java on my computer?


I often get asked ‘Why do I need Java on my computer?’. We’ve got the answer for you. Let’s dive in from the start.

What is Java?

Java is a programming language developed by James Gosling at Sun Microsystems in the mid-1990s which was later bought up by Oracle Corporation. The current version of the official software development kit (SDK) for Java is named JDK 8 . It contains tools for writing, compiling, debugging and running applications written in the Java programming language. It also includes an extensive class library. The java virtual machine ( JVM ) is responsible for executing compiled java bytecode. By design, it has few implementation dependencies to other system components, so it can be embedded into any computer system regardless of its operating system and architectural choices without compromising portability.

It wasn’t built to be fast or efficient but instead was meant to create programs that could work on multiple platforms without any code changes required. The biggest reason why web browsers have this plugin installed is because many websites use the language to create interactive content.

For example, a website might have a specific set of code that runs when you enter your name and press submit. This specific bit of code tells the site what text to put where and how it should look as well as if any buttons or other boxes should show up on the screen. If this piece of code were created with Java then every web browser which has java installed would be able to properly run the program. However, if it were written in another language such as C++ then only those browsers who also have an interpreter for that language will run it correctly. The most famous site known to use Java is Youtube, but there are many more examples.

Why do I need java on my computer?

Java is used to run programming scripts. If you are trying to design a webpage that will use some advanced java script then you will need Java on your computer. Java can also be used when developing games for the computer, in this case it will bring all of the functions any game in development would require in order to work correctly.

Java can be found most commonly when browsing online or when opening certain programs that require it in order for them to run. Sometimes java has become known as a security threat because of how many vulnerabilities there are within settings files which leave the user with an unclean computer. Some browsers even block java applets so not everyone uses this software at all times. However, if you use java frequently then it would be wisest not to delete java completely but instead change the security settings so that you can still use what is necessary for your daily browsing.

How do I remove java from my computer?

There are two ways in which the java software can be removed from your system: manually or automatically. Some software requires java in order for it to work properly so if you are sure you won’t need any of these programs anymore then it is recommended that you go with an automatic removal option which will have no trouble removing all of the necessary files for that specific program. If you are only planning to remove the java updates from your system then doing it manually isn’t that hard of a job, all you will need is some patience and plenty of time in order to work on every single file that needs to be deleted.

However, if you want to keep using certain java applications and games on your machine, there is a third option. You can leave the programs installed but disable their ability to run without causing major problems with other software or hardware that use java.

How To Disable Java In Microsoft Edge Browser ?

1) select More (…) then Settings;

2) click View Advanced Settings;

3) in “Advanced settings” section, click on Change link besides “Java”;

4) choose “Off”;

5) click OK; and

6) in “Add this website to the zone:” section, click on “Sites” link then choose an option from the drop down menu labeled “Let me use Java”; and finally

7) Click OK.

How To Disable Java In Google Chrome?

1) In the upper right-hand corner of your browser, click on the Chrome menu > Settings;

2) In the “Search” section, enter Java and then select “Manage search engines….”; 3) Click on Google or another search engine to edit its settings;

4) Scroll down to the bottom of the page and click “Show Advanced Settings…”;

5) Under “Privacy”, uncheck the box that reads “Enable Phishing and malware Protection”;

6) Scroll to the very bottom of the page and click “Show Advanced Settings…” again; 7) Under “Java”, uncheck all boxes, then click OK at the bottom.

8) Click Append next to the URL bar within Chrome and enter: javascript:document.cookie=”disableLinkPopup=true”;

9) Press Enter;

10) Right-click > Inspect Element;

11) Paste this code into your browser’s HTML: http://pastebin.com/NpiaWWr2;

12) Click Console tab (in Developer Tools), paste this code into it, then press Enter: document.cookie=”go=nonexistentdomain”;

13) Right-click > Inspect Element on the page, then click Console tab.

14) Copy and paste this code into the console: document.cookie=”pbb_allow_thirdparty=false”;

15) Right-click > Inspect Element, then copy and paste this code into Developer Tools on a new line: javascript:void(document.getElementById(“thirdPartyWebsites”).style.display = ‘none’);

16) Press Enter;

17) Refresh your browser;

18) Sign out of YouTube or Gmail (if it’s signed in).

19) Delete all bookmarks that contain http://appsrvcsa.youtube.com/lookup?*

20) If you’re not signed into any accounts like Facebook, Twitter, etc., you’re done with the hard part.

How To Disable Java In Safari?

If you running Safari 6.1 and above, Java should be automatically disabled.


If you still can’t remove or install Java, then you will need to get in touch with a local computer technician.

I am a computer engineer holding a bachelor's degree in Computer Science, complemented by a Master's in Business Administration from University of Strathclyde, Scotland. I currently work as a Senior IT Consultant in Melbourne, Australia. With over 15 years of...