razi-pseudocode-while-do-switch

BEGIN main
	INPUT userOption
	WHILE userOption<>0 DO
		SWITCH userOption
			CASE 0: PRINT "bye!"
			CASE 1: CALL updatedata
			CASE 2: CALL displaydata
		END SWITCH
	END WHILE
END main

BEGIN displaydata
	FOR all item in array PRINT item values
END displaydata

BEGIN updatedata
	INPUT indexnumber, arrayvalue
	arr[indexnumber]=arrayvalue
END updatedata