～ね / ～よね / よ — sentence-final particlesGenki
ね / よね seeks the listener's agreement (“…, right?”); よ asserts something you think they don't yet know (“I tell you”).
リーさんの せんこうは ぶんがくですね。
Your major is literature, right?
とんかつは さかなじゃ ないですよ。
Tonkatsu isn't fish, you know.
ね at the very end invites the listener to confirm or agree — it assumes you both share the information (“…, isn't it?”).
よ marks information you believe is new to the listener and want to assert. Overusing よ can sound pushy, so use it when you're genuinely informing or reassuring.