Random number generator

[Mindy Wu]

I need to randomly generate x numbers from range 1 - 5 in a unique sequence.
For example:
x=20, within the set, i want to have 5 ones', 10 threes', and 2 twos', 1 fours', 2 fives' in a random sequence.
I know it is possible to achieve the about task by using a counter inside the loop. However, this is not the efficient way.
Can anyone help me out?
Thanks a lot!

[Michael Dunn]

Don't know about efficient, but this seems to work OK.

import java.util.*;
class Testing
{
  public Testing()
  {
    ArrayList numbers = new ArrayList(Arrays.asList(
      new String[]{"1","1","1","1","1","2","2","3","3","3","3","3","3","3","3","3","3","4","5","5"}));
    Collections.shuffle(numbers);
    for(int x = 0; x < numbers.size(); x++) System.out.println(numbers.get(x));
    System.exit(0);
  }
  public static void main(String[] args){new Testing();}
}