LOS ANGELES – Teen idol Mischa Barton was sentenced to three years probation on Thursday after pleading no contest to drink driving charges following her arrest in December last year, court officials said.

The 22-year-old former "The O.C." star did not appear at a brief hearing in Beverly Hills where she also received a $2,000 fine and was ordered to attend a three-month alcohol-education class.

Drug possession charges against the actress were dismissed after Barton's plea deal, court officials said.

Barton had been caught in possession of marijuana when she was arrested in Hollywood on December 27 after police spotted her driving erratically.

"Mischa's glad the case has been resolved," lawyer Anthony Salerno said after the hearing, praising prosecutors in the case as "very fair."

Though best known for hit teen television show "The O.C.," London-born Barton's film credits include cameos in hit movies "The Sixth Sense" and "Notting Hill."