Foreign Language Online

I have family that lives in Germany. I am a sophomore in a US high school. If I went to stay with my family for the summer in Germany and learned some German, could I get high school foreign language credits if I tested out?

I’m a freshman and in high school I’m taking Spanish 1 or Native Speakers. I just recently started Japanese lessons. The teacher comes to my house to teach me.
Now I’m wondering if I can use this as my foreign language for school. Can I do this just to take of one year off foreign language in school?

I’m not going to try it yet, but I’m just wondering if its possible. If it is, I might take it into consideration.
ugh, I meant “for Native Speakers”

I’m currently in high school and I am working on getting a foreign language credit. I do not have enough time to get my second for college is there any way I can get this last credit outside of school?