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Category > Computer Science Posted 15 Jul 2017 My Price 8.00

String permutation

**18.25 (String permutation) Write a recursive method to print all the permutations of a string. For example, for the string abc, the permuation is

 

abc acb bac bca cab cba

 

(Hint: Define the following two methods. The second is a helper method.)

 

public static void displayPermutation(String s)

public static void displayPermutation(String s1, String s2)

 

The first method simply invokes displayPermutation(" ", s). The second method uses a loop to move a character from s2 to s1 and recursively invokes it with a new s1 and s2. The base case is that s2 is empty and prints s1 to the console.

Write a test program that prompts the user to enter a string and displays all its permutations

Answers

Maurice Tutor
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Status NEW Posted 15 Jul 2017 06:07 PM My Price 8.00

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