..MindWrite..

Permutations of a String

Posted by guptaradhesh on February 4, 2013

public  static void permutation(String str) { 
    permutation("", str); 
 }

 private static void permutation(String prefix, String str) {
    int n = str.length();
    if (n == 0) System.out.println(prefix);
    else {
        for (int i = 0; i < n; i++)
           permutation(prefix + str.charAt(i), str.substring(0, i) + str.substring(i+1, n));
    }
}
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One Response to “Permutations of a String”

  1. Will said

    another good code sample with explanation:
    http://cs.fit.edu/~mmahoney/cis5100/examples/ch15/fig15_12_13/Permutation.java

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