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Java Java Data Structures Exploring the Java Collection Framework Maps

Keys are case sensitive in Maps.

Keys are case sensitive in maps, if it is how to make it not case sensitive

1 Answer

King Chang
PLUS
King Chang
Courses Plus Student 5,403 Points
class CustomMap extends HashMap<String, Object>{
    @Override
    public Object put(String key, Object value){     
        return super.put(key.toUpperCase(), value);
    }

    @Override
    public Object get(Object key){
        if(key instanceof String){
            return super.get(( (String) key ).toUpperCase());
        }
        throw new RuntimeException("Key Error");
    }

}