If you use the standard std::map associative container with std::string or std::wstring as key types, you get a case sensitive comparison by default .
Read moreIs key case sensitive?
While object properties are strings and they are case sensitive , you could use an own standard and use only lower case letters for the access. You could apply a String#toLowerCase to the key and use a function as wrapper for the access.
Read moreAre HashMap keys unique?
HashMap is a container that stores key-value pairs. Each key is associated with one value. Keys in a HashMap must be unique .
Read moreIs key unique in HashMap Java?
HashMap is a collection to store (key,value) pairs and According to the documentation of HashMap the keys are always unique . If you add a key which already exists(collision) in the hashmap, the old value will be replaced.
Read moreIs there a limit to HashMap in Java?
HashMap is not limited , provided to have a load factor is increased. … And the largest number of elements you can have before the HashMap will try to double its size to 2^31 (which it cannot do) is ( 2^30 * loadFactor ) or about 700 million for the default load factor.
Read moreWhat is the problem with HashMap in Java?
HashMap’s methods are not synchronized . HashTable is more or less obsolete and people writing new code should avoid using a HashTable. In a HashMap, keys are always unique. i.e., there cannot be 2 entries with the same key.
Read moreWhat is the use of @JsonProperty?
The @JsonProperty annotation is used to map property names with JSON keys during serialization and deserialization . By default, if you try to serialize a POJO, the generated JSON will have keys mapped to the fields of the POJO.
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