1 public static void AllSequenceofString(String string){ 2         if(string == null) 3             return; 4         char[] chars = string.toCharArray(); 5         Permutation(chars,0); 6     } 7     private static void Permutation(char[] chars, int index) { 8         // TODO Auto-generated method stub 9         if(index == chars.length){10             for(int i=0;i<chars.length;i++){11                 System.out.print(chars[i]);12             }13             System.out.println();14         }15         else{16             for(int i = index ; i < chars.length;i++){17                 char temp = chars[i];18                 chars[i] = chars[index];19                 chars[index] = temp;20                 Permutation(chars,index+1);21                 temp = chars[index];22                 chars[index] = chars[i];23                 chars[i] = temp;24             }25         }26     }