java遍历List

List<Goods> list = goodMapper.getGoodsBySid(sid);

Iterator<Goods> iterator = list.iterator();
while (iterator.hasNext()) {
	Goods good = iterator.next();
	if(good.getGid==20){
		iterator.remove();
	}
}

for (Goods good : list) {
	if (good.getGid==20) {
		list.remove(good);
		break;
	}
}

for (int i = 0; i < list.size(); i++) {
	Goods good = list.get(i);
	if (good.getGid==20) {
		list.remove(i);
		break;
	}
}

list.forEach(one->{
	if (one.getGid()==20) {
		list.remove(one);
		return;
	}
});