RosettaCodeData/Task/Jensens-Device/NetRexx/jensens-device.netrexx
2023-07-01 13:44:08 -04:00

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1.1 KiB
Text

import COM.ibm.netrexx.process.
class JensensDevice
properties static
interpreter=NetRexxA
exp=Rexx ""
termMethod=Method
method main(x=String[]) static
say sum('i',1,100,'1/i')
method sum(i,lo,hi,term) static SIGNALS IOException,NoSuchMethodException,IllegalAccessException,InvocationTargetException
sum=0
loop iv=lo to hi
sum=sum+termeval(i,iv,term)
end
return sum
method termeval(i,iv,e) static returns Rexx SIGNALS IOException,NoSuchMethodException,IllegalAccessException,InvocationTargetException
if e\=exp then interpreter=null
exp=e
if interpreter=null then do
termpgm='method term('i'=Rexx) static returns rexx;return' e
fw=FileWriter("termpgm.nrx")
fw.write(termpgm,0,termpgm.length)
fw.close
interpreter=NetRexxA()
interpreter.parse([String 'termpgm.nrx'],[String 'nocrossref'])
termClass=interpreter.getClassObject(null,'termpgm')
classes=[interpreter.getClassObject('netrexx.lang', 'Rexx', 0)]
termMethod=termClass.getMethod('term', classes)
end
return Rexx termMethod.invoke(null,[iv])