java - Generating all permutations of a given string -


what elegant way find permutations of string. e.g. ba, ba , ab, abcdefgh? there example java implementation?

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 {         (int = 0; < n; i++)             permutation(prefix + str.charat(i), str.substring(0, i) + str.substring(i+1, n));     } }

(via introduction programming in java)


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