static int indexOf(L l, A a, int startIndex) { if (l == null) ret -1; for (int i = startIndex; i < l(l); i++) if (eq(l.get(i), a)) ret i; ret -1; } static int indexOf(L l, A a) { if (l == null) ret -1; ret l.indexOf(a); } static int indexOf(S a, S b) { ret a == null || b == null ? -1 : a.indexOf(b); } static int indexOf(S a, S b, int i) { ret a == null || b == null ? -1 : a.indexOf(b, i); } static int indexOf(S a, char b, int i) { ret a == null ? -1 : a.indexOf(b); } static int indexOf(S a, char b, int i) { ret a == null ? -1 : a.indexOf(b, i); } static int indexOf(S a, int i, S b) { ret a == null || b == null ? -1 : a.indexOf(b, i); } static int indexOf(A[] x, A a) { if (x == null) ret -1; for (int i = 0; i < l(x); i++) if (eq(x[i], a)) ret i; ret -1; }