Java Stream FindFirst: Filter, Map, and Handle No Match with orElseGet
The code provided is using a stream to iterate over the values of the "LocalAndMunicipalCompanyEnum" enumeration, filter them using the given "predicate", and then find the first matching value. It then maps the matched value using the given "mapper" function, or if no match is found, it returns the result of the "value" supplier.\n\nHowever, there is a typo in the code. Instead of "vaule", it should be "value". Assuming "value" is a valid supplier, this code will return the mapped value if a match is found, or the result of the "value" supplier if no match is found.\n\nTo clarify, the "orElseGet" method is used to provide a fallback value if no match is found. It takes a "Supplier" as an argument, which is a functional interface that provides a value. In this case, "value" is the "Supplier" that provides the fallback value.\n\nHere is an updated version of the code with the typo fixed:\n\njava\nreturn Stream.of(LocalAndMunicipalCompanyEnum.values())\n .filter(predicate)\n .findFirst()\n .map(mapper)\n .orElseGet(value);\n
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