Question: Code a method called encrypt to encrypt a String by swapping each pair of its adjacent characters. In the case of Strings with an odd

Code a method called encrypt to encrypt a String by swapping each pair of its adjacent characters.

In the case of Strings with an odd number of characters pad them with a trailing space before encryption.

For example, "Hi there!" would be encrypted as "iHt eher !". You are not required to deal with an empty array.

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