Moving arrays around

Question

Hi,
Ive recently been messing around with some array stuff (only recently started Learning java)
And ive written a program that takes members of a array and moves the first to the end and then moves the rest up one space so in my array of 4 members the member in 0 is moved to 3 and then all the other members are moved up one so 3 becomes 2 and so on.
Now i then went back to try and do it the other way round move the member in slot 3 to 0 and then the others move back but this time ive run into some problems.
Heres the original code i wrote to move 0 to 3:
class Band
     public static void main(String[] args)
          String band[ ] = {"John", "Paul", "George", "Ringo"};
          System.out.println("Original Order");
          //Prints out the array to test its working.
          for (int i = 0; i < band.length; i++)
               System.out.println(band);
          //Changes the order of the array so that John is last.
          String s = band[0];
          for (int b = 0; b < band.length -1; b++)
               band[b] = band[b+1];
          band[band.length - 1] = s;
          System.out.println(" ");
          System.out.println("New Order");
          //Prints out the new ordered array to test its working.
          for (int n = 0; n < band.length; n++)
               System.out.println(band[n]);
Ok so that just outputs the following:
Original Order:
John
Paul
George
Ringo
1st New Order:
Paul
George
Ringo
John
Now heres the new version to move ringo to johns position and the others down one:
class Band
     public static void main(String[] args)
          String band[ ] = {"John", "Paul", "George", "Ringo"};
          System.out.println("Original Order");
          //Prints out the array to test its working.
          for (int i = 0; i < band.length; i++)
               System.out.println(band);
          //Changes the order of the array so that Ringo is first.
          String r = band[3];
          for (int h = 3; h < band.length -1; h--)
               band[h] = band[h-1];
          band[band.length -4] = r;
          System.out.println(" ");
          System.out.println("2nd New Order");
          //Prints out the new ordered array to test its working.
          for (int m = 0; m < band.length; m++)
               System.out.println(band[m]);
Now when i run that this is the part where it all goes wrong and the output is then:
Original Order:
John
Paul
George
Ringo
1st New Order:
Ringo
Paul
George
Ringo
As you can see from that it moves ringo to johns space but the rest dont move.
Can anyone give me a hand in figuring this out as ive spent nearly a whole day working on it for what i think is going to be a simple answer.
Cheers in advance LordOfGood

Answer 1

You should concider using the statndard Collections in this case ArrayList
        List band = new ArrayList(Arrays.asList(new String[]{"John", "Paul", "George", "Ringo"}));
        System.out.println("Original Order");
        System.out.println(band);
        //Changes the order of the array so that Ringo is first.
        String ringo = (String) band.remove(3);
        List band2 = new ArrayList(4);
        band2.add(ringo);
        band2.addAll(band);
        System.out.println("\n2nd New Order");
        System.out.println(band2);