Mac continually prompted to install Java again

After I updated to macOS Sierra (10.12), El Capitan (OS X 10.11) or Yosemite (OS X 10.10), why am I continually prompted to install Java again?

According to https://www.java.com/en/download/faq/yosemite_java.xml

This article applies to:

• Platform(s): Mac OS X

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SYMPTOMS

Even after upgrading to the latest version of Java, while running some applications on macOS Sierra (10.12), El Capitan (OS X 10.11), or Yosemite (OS X 10.10), users see a dialog box prompting to download Java.

macOS Sierra 10.12 or Yosemite (OS X 10.10) message: 

To open "application" you need to install the legacy Java SE 6 runtime.

El Capitan (OS X 10.11) message:

To use the "java" command-line tool you need to install a JDK

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CAUSE

This is most commonly because an application requires the legacy Java 6 provided by Apple. For the solution to this issue, see http://support.apple.com/kb/DL1572.

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You might also be interested in:

• Mac OS X information for installing and using Java

Troubleshooting

Going through 

https://forums.macg.co/threads/popup-pour-utiliser-les-outils-de-ligne-de-commande-java.1272915/

SOLUTION 

GO TO
apple.com 
GO TO support
search

dl1572
download and install