how can i get alias from pfx keystore?

i have two files: cert.spc and cert.pvk. i genereted cert.pfx. now i want to sign applet by using jarsigner:

jarsigner -keystore cert.pfx -storetype PKCS12 applet.jar? - what alias?

, but i haven't alias for certificate in keystore. how can i get it? or can i sign without alias and how? thank you!

[319 byte] By [crichtona] at [2007-11-27 5:22:11]