Win7 system can not install Java how to do

Win7 system can not install Java and error prompt, as shown below:

Cause analysis 1: Proxy server requires authentication
Workaround: Check the "Internet Connection Proxy Settings" page. Note: Make sure proxy authentication is turned off.
Cause Analysis 2: Network Connection Failure
Remedy: If the network is congested or the Internet service provider's Internet connection is unstable, the package may not work properly because the installation file is not completely downloaded.
Cause Analysis 3: The download manager software interrupted the download process, for example: breakpoint resume
Remedy: Save the package to a location and start the offline installation package after the download is complete.
Cause Analysis 4: TSR (terminate and resident) programs (such as Norton AntiVirus) may interfere with the installation process.
Workaround: Some download software managers do not work properly and may interrupt or slow down the download. It is recommended that you stop using the third-party download manager and start normal downloads.
Cause analysis 5: TSR
Workaround: Anti-virus programs have the option to block downloads unless they are disabled during the download.
Note: Java is an object-oriented programming language that can write cross-platform applications, and you must be careful when installing it.
The above is the introduction of the failure analysis and solution for the failure to install Java on Win7 system. Friends who have the same problem can try to solve it.