How can I fix these errors in the BAT file?

I wanted to program a Minecraft hack client, I watched tutorials on YouTube, they worked, but when I run the BAT file, I get errors that you can see on the two photos, how do you fix them? Below I have summarized the errors zsm in case the photo is not recognizable. Looking forward to your answers.

Hope you can see the following errors occur: runtime / bin / applydiff.exe -p1 -u -i././temp/temp.patch -d src / minecraft failed: 1

1out of 1 hunk failed - saving rejects to file net / minecraft / util / Cartesian.jav #

and one more thing: Source option 6 is no longer supported. Use 7 or later

Source option 6 is no longer supported. Use 7 or later

I don't know the hack, but I would read from the bug report that you are working with an outdated Java version.

Mh where can I get a new one?

That's how I would interpret the message.
Google times for Java update

Thank you, I fixed all errors except one, thank you very much

Try to enter "java -version" in the CMD, the current java version is "1.8.0_281"