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simona1@sfusd.edu googlebillboard > lastChars
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Given 2 strings, a and b, return a new string made of the first char of a and the last char of b, so "yo" and "java" yields "ya". If either string is length 0, use '@' for its missing char.


lastChars("last", "chars") → "ls"
lastChars("yo", "java") → "ya"
lastChars("hi", "") → "h@"

...Save, Compile, Run (ctrl-enter)

public String lastChars(String a, String b) { }

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