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java,code puzzler

Thursday Code Puzzler: Second Highest Frequency

It's Thursday, so it's time for another code puzzler. The idea is simple: solve the coding problem as efficiently as you can, in any language or framework that you find suitable.

Note: Even though there really is nothing stopping you from finding a solution to this on the internet, try to keep honest, and come up with your own answer.  It's all about the participation!

Calculate The Second Highest Frequency 

Write a method that accepts a String and returns the  character with the second highest frequency. For example "aabbbc" would return 'a'. If the string contains spaces, they can be disregarded from the count.

Catch up on all our previous puzzlers here

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