If I have testicle cancer would freguent & urgent urination be symptoms?

No. Frequent and urgent urination sounds more like urinary tract infection/ irritation or prostate issue.
Not usually. Testicular cancer arises in the testicles most often as a solid painless mass. These usually do not affect urination at all since the urethra, which drains the bladder, does not pass trough the testicles. If the mass were large enough it could impinge on the urinary outflow but this would be associated with other problems and be very unusual. Blood tests and testicular exam evaluate for such.