if i forgot my lock password how can i unlock my phone

You will need to restore your iPad from the same computer that you most recently synced to.

Read this: http://support.apple.com/kb/ht1212

If you can't do the restore then you will need to try recovery mode.

Read this: http://support.apple.com/kb/ht4097

you will need to restore it. http://support.apple.com/kb/ht1414 it will erase everything.

You can't. That is the purpose of having a lock code to prevent anyone from getting into the phone.

http://support.apple.com/kb/HT1212

Iphone JimHdk, not iPad! I'll leave you alone 😉.