RosettaCodeData/Task/Pick-random-element/GW-BASIC/pick-random-element.basic

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10 RANDOMIZE TIMER : REM set random number seed to something arbitrary
20 DIM ARR(10) : REM initialise array
30 FOR I = 1 TO 10
40 ARR(I) = I*I : REM squares of the integers is OK as a demo
50 NEXT I
60 C = 1 + INT(RND*10) : REM get a random index from 1 to 10 inclusive
70 PRINT ARR(C)