@echooff@echooff&setlocalenabledelayedexpansion(for/f"delims="%%ain(a.java)do(set/an+=1if!n!equ5(echolove)else(echo,%%a)))>$move/y$a.java... @echo off
@echo off&setlocal enabledelayedexpansion
(for /f "delims=" %%a in (a.java) do (
set/a n+=1
if !n! equ 5 (
echo love
) else (
echo,%%a
)
))>$
move /y $ a.java