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BJP3 Exercise 4.17: swapPairs

Language/Type: Java for loops if/else return Strings
Author: Will Beebe (on 2013/04/01)

Write a method called swapPairs that accepts a String as a parameter and returns that String with each pair of adjacent letters reversed. If the String has an odd number of letters, the last letter is unchanged. For example, the call swapPairs("example") should return "xemalpe" and the call swapPairs("hello there") should return "ehll ohtree".

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This is a method problem. Write a Java method as described. Do not write a complete program or class; just the method(s) above.

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