1. (20 pts) Given the following code: public static voidfoo3(String s) { if (s.length() >0) {System.out.print(s.charAt(s.length() -1)); foo3(s.substring(0,s.length() -1)); } } What is the output of: foo3(“”);
2. (20 pts) Using the code in #1, What is the output offoo3(“Hi”)?
3. (20 pts) Fill in the missing code: This recursive methodreturns “even” if the length of a give String is even, and “odd” ifthe length of the String is odd. public static String foo(String s){ if (s.length() ==0) return “even”; else if (s.length() = = 1)return “odd”; else //your code goes here }
4. (40 pts) You coded the following in the file
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