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我有以下HashMap,其中键是String并且值由HashMap表示。更新HashMap中指定键的值
HashMap<String, HashMap<String, Integer> outerMap = new HashMap<String,HashMap<String, Integer>();
HashMap<String, Integer> innerMap = new HashMap<String, Integer>();
innerMap.put("Amount", 2000);
outerMap.put("TutionFee", innerMap);
现在我想更新Amount
键的值。如何更新Amount
密钥的值?
检查(HTTP [如何更新的值,因为在Java HashMap中的关键字?]:// stackoverflow.com/questions/4157972/how-to-update-a-value-given-a-key-in-a-java-hashmap) – sam