How do I replace an array element with three elements without using another array? eg. Replace '0' by $,£,&

Answer 1

you can replace array element but one at a time
eg.
String[] a={"1","0","3","0","5"};
for(int i=0 ;i<a.length;i++)
{
if(a[i]=="0")
{
a[i]="&";
}
}

after replacement a=1,&,3,&,5

Answer 2

is it possible if the length is not defined or some indexes contains null value?

Answer 3

you cannot do it, because an array has fixed size