java collection framework , find if 2 strings are anagram, how to connect 2 DB at a time in spring, how to reloead configuration in spring framework at runtime(without application downtime)

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To check if two strings are anagrams, connect two databases in Spring, and reload configuration without downtime in Spring.

To check if two strings are anagrams, use Java Collection Framework to compare the characters in both strings.
To connect two databases in Spring, configure multiple data sources in the application context file.
To reload configuration in Spring without downtime, use Spring Cloud Config to externalize configuration and refresh it at runtime.

java collection framework , find if 2 strings are anagram, how to connect 2 DB at a time in spring, how to reloead configuration in spring framework at runtime(without application downtime)

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