Is it okay finish high with Pre-cal?

<p>I'm a junior right now. </p>

<p>I'm planning to either take calc after I graduate... Or take summer school. The problem is, I kinda want to go to study abroad in Japan during that same summer. I hate how it conflicts. Is it worth it? Japan or Calc?</p>

<p>I especially want to go to UC's or private colleges. Will that fact ruin my chances?</p>