Avoid printing the last comma

Question

I'm trying to print this loop without the last comma. I've been Googling about this and from what i've seen everything seems overcomplex for such a small problem. Surely there is an easy solution to avoid printing the last comma. Much appreciated if somebody could help me out, this is driving me insane!!!

For example it loops from 1-10 // 1,2,3,4,5,6,7,8,9,10, < do not want this last comma

public static void atob(int a,int b)
{
    for(int i = a; i <= + b; i++) 
    {
        System.out.print(i + ",");
    }
}

Answer 1

I might get stoned to death for this answer

public static void atob(int a,int b) {
  if(a<=b) {
    System.out.println(a);
      for(int i = a+1;i<=b;i++) {
        System.out.println(","+i);
      }
    }
  }
}  

Answer 2

Yet another way to do this.

String sep = "";
for(int i = a; i <= b; i++) {
    System.out.print(sep + i);
    sep = ",";
}

if you are using a StringBuilder

StringBuilder sb = new StringBuilder();
for(int i = a; i <= b; i++)
    sb.append(i).append(',');
System.out.println(sb.subString(0, sb.length()-1));