If Exist And Else in batch

Question

How would I add and Else option into this to say:
You don't have the java dev kit please select option 4?

FOR /R "C:\Program Files" %%a IN (.) DO (
    IF EXIST "%%~a\javac.exe" ECHO You Have The Java Dev Kit Ignore Option 4
) 

Answer 1

SET found=0
FOR /R "C:\Program Files" %%a IN (.) DO (
    IF EXIST "%%~a\javac.exe" ( ECHO You Have The Java Dev Kit Ignore Option 4 
    SET found=1)
) 
IF %found%==0 ( ECHO You don't have the java dev kit please select option 4 )

If you want ELSE you must use ( and ) brackets.

Answer 2

You need to search fist all subdirectories to decide if it's there.

set found=0
FOR /R "C:\Program Files" %%a IN (.) DO (
    IF EXIST "%%~a\javac.exe" set found=1
)
if %found%==0 (
   ECHO You don't have the java dev kit please select option 4
) ELSE (
   echo Found javac.exe
)