Problem Statement

This task is about copying a string.

Where it is relevant, distinguish between copying the contents of a string versus making an additional reference to an existing string.

Let's start with the solution:

/* NetRexx */
options replace format comments java crossref symbols nobinary

s1 = 'This is a Rexx string'
s2 = s1

s2 = s2.changestr(' ', '_')

say s1
say s2