public boolean containsAll(final Collection<?> c) { for (final Object x : c) { if (!contains(x)) { return false; } } return true; }
public boolean containsAll(final Collection<?> c) { for (final Object x : c) { if (!contains(x)) { return false; } } return true; }
public boolean containsAll(final Collection<?> c) { for (final Object x : c) { if (!contains(x)) { return false; } } return true; }