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Map<Integer, Boolean> answerMap = new HashMap<>(); for (Answer answer : answerList) { answerMap.put(answer.getId(), answer.getAnswer()); } Map<Integer, Boolean> answerMap = new HashMap<>(); answerList.forEach((answer) -> answerMap.put(answer.getId(), answer.getAnswer()));
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原文地址:http://www.cnblogs.com/bravolove/p/5845460.html