you can learn both in same time, you can select to buy japan learning books which is in madarin, so you can learn both at the same time., visit this,
其實之前我係yahoo度揾度個賣日文教材(書冊連光碟)的公司, 如果您剛開始學日文, 可以買一的教材自學先, 一來唔洗一開始就比幾千蚊人地, 二來你可以睇下自己係咪真係有興趣先.
佢的書全部都有發音光碟跟埋, 跟住學都好易上手, 到真係有興趣再上堂都未遲lor! 你睇下呢個 site 啦…同埋如果你同出面書局比, 的書平成一半…
www.booknshop.com
同埋我建議你有mp3機的話可以將佢的書送的mp3碟入落機度拎出街度成日聽住咁洗腦, 好快就上口!!!!