Android Question File javac.exe

Hi.
When I try to make the "Paths Configuration" it is requested the file javac.exe.
Javac-1.jpg

But, when I look for this file, it is missing.
Javac-2.jpg

The closest filename are: "java.exe" and "javacpl.exe.
But, there is no way to select one of them and try if it works.
Why is this happening?
What am I missing?
Is there anyone who could give me a tip on how to move ahead?
Thanks in advance.
 
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