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Please help me write this code in java, I have attached the file that is needed: RecursionLab.java : https://www.csd.uwo.ca/Courses/CS1027a/labs/lab7/RecursionLab.java Exercise 1 Download the file RecursionLab.java.

image text in transcribedPlease help me write this code in java, I have attached the file that is needed:

RecursionLab.java : https://www.csd.uwo.ca/Courses/CS1027a/labs/lab7/RecursionLab.java

Exercise 1 Download the file RecursionLab.java. Your task is to fill in the code for a recursive method that prints a string backwards. For example, for the parameter string "Java", your method would print "avaJ. The header of this method is public static void reversePrint(String instring) Note that the method is static, i.e. it is a class method, and will not be invoked on an object. (See the main method to see how it is invoked.,) Hints . Think about the problem of printing a string in reverse recursively by considering an example string, say 'abcd". To print it in reverse: o The first character to be printed would be the character "d' (which is the last character of the string). We are then left with the problem of printing a smaller string, "abc" in reverse. (Note that it's the same problem, only with a smaller string) o Print its last character, "c". We are then left with the problem of printing the smaller string "ab" in reverse. o Print ts last character, "b". We are then left with the problem of printing the smaller string "a" in reverse. o Print ts last character, "a". We are then left with the problem of printing the empty string in reverse. . Generalize that into an algorithm for the method reverserint if the paraneter string ia empty (the base case) return from the method print the last character of the parameter string call reversePrint with the substring that does not include the last character as the parameter You can simplify the algorithm, by instead using the test if the string is not empty. You should be able to write the algorithm using just the string methods charAt, substring and length. Exercise 2 Now you will write a recursive method that returns the reverse of a string. For example, for the parameter string "Java", your method would return the string "avaJ". The header of your method should be public static string reversestring(String instring) Add this method to the file RecursiveLab.java Hints . The algorithm should be if the paraneter string is empty (the base case) return the null string as the result string result string is the last character o return the result string f the parameter string , concatenated with the reverse of the substring that does not include the last characte You should be able to write the algorithm using just the string methods charAt, substring, concat and length. Add the following code to the main method in RecursionLab.java to test your reverseString method: // test reverseString String revstring reversestring(instring) System.out.println (revstring)i

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