Behind the FND a code is written which tell whether it is common cathode or anode......i don't remember that codes..
you can check it by analog multimeter or simply by power supply rember toi add a series resistance with it depend on the rating of current try with 1.5V cell...!!
You can also use a digital multimeter's "DIODE" test function to light the LEDs of the 7-segment. If the positive lead is connected to the common and the LEDs light, it's common anode, otherwise it's common cathode.
You also won't need a series resistor with a multimeter, although the "DIODE" test function on the multimeter will only cause the LEDs to glow faintly.
You can do it using a 9v battery and a 1k resistor, try various connections, after a while you'll find out which is common and whether its a anode or cathode, and you'll also find out whicgh segment is which.
I've done this many times with displays from my scrap box, and ones got on the cheap from surplus stores and ebay.
We speak English here.
Is this the language of little kids? Then many vowels are missing.
"Hi, can someone help me how to ..." is what you should have written.