RosettaCodeData/Task/Simple-windowed-application/J/simple-windowed-application...

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SIMPLEAPP=: noun define
pc simpleApp;
cc inc button;cn "Click me";
cc shownText static;cn "There have been no clicks yet.";
)
simpleApp_run=: verb define
wd SIMPLEAPP
simpleApp_accum=: 0 NB. initialize accumulator
wd 'pshow;'
)
simpleApp_inc_button=: verb define
wd 'set shownText text ','Button-use count: ',": simpleApp_accum=: >: simpleApp_accum
)
simpleApp_close=: wd bind 'pclose'
simpleApp_cancel=: simpleApp_close
simpleApp_run''