An updated Java version is necessary because of many reasons. The most crucial one is security, as with an out of date Java, hackers can get access into your computer unnecessarily. Also, most inbuilt operating system programs run on java, and so to make them run as expected you have to upgrade Java. Without Java, programs and games will not have the Java environment to run on. Without an up to date Java, you will find your games and programs being very slow and crashing unnecessarily

Need for updated Java

Updating Java manually

Java is necessary for most web scripts to run. It is also responsible for programs that are programmed using Java to run optimally. On most occasions, it fails to update automatically or update it, if it installs with its other unnecessary applications and programs. As a result, it is recommended that you manually update your Java. The following will explain how best to manually update java.

1. Requirements

This whole process of manually updating your Java requires an internet connection, and in any of your preferred browser windows/tab. Ensure that you also have javascript enabled in your browser for the application to run as expected.

2. Check whether you have Java.

This stage helps you know whether you have any Java installed in your computer. Open a browser window and go to http://www.java.com. A page will open. Look carefully for small links that ask what Java is, whether you have Java and help. Click the one that asks whether you have java.
If you do not have it, you will get the notice and you will need to click on “Free Download”, that is clearly shown in red.
For this, you will see something like:

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3. Verify your Java.

After step 2, a new page opens where you are required to verify your Java. It is somewhere in the middle of the page and in red, clearly visible. Click on “verify your Java ”. You might be needed to give the computer the nod to run a script, except by clicking “Run”; if asked to.

4. Update your Java

After some time, you will see 3 options. Either you do not have Java, or it is out of date or you have the latest Java installed. Click on the link to update Java. Then your Java will be upgraded to the most current available version.
If this stage fails, you may try restarting your browser and following this process again.

Conclusion 

The above article helps explained about manually update your Java software. We have seen that auto update feature in it should not be relied upon because of its failure to run or installing unwanted programs when it functions as expected.