Wayne Bell wrote:
Steve,
First of all, you forced both the second and third lines to characters by
having characters in both lines. So they would both produce '22'.
Well, I actually ran a separate test at the same time:
System.out.println("In main");
System.out.println("2 + quoted 2 = " + 2 + "2");
System.out.println("quoted 2 + 2 = " + "2" + 2);
System.out.println("Leaving main");
and got the same results.
And with
System.out.println("2 + 2 = " + 2 + 2);
you still get
2 + 2 = 22
But to add to the confusion, here is the simple program that I wrote:
/* REXX */
X = 2 + "2";
Y = "2" + 2;
SAY "Second 2 Quoted:"
SAY X;
SAY "First 2 Quoted:"
SAY Y;
With the result:
Second 2 Quoted:
4
First 2 Quoted:
4
Both converted to numerics!! I'm confused!
As someone pointed out, REXX looks first to see
if a string can be considered a number; if so,
it will use the numeric interpretation; in Java,
"+" in a String context is concatenation, so Java
tries to treat the data as String; in REXX, the
concatenation operator is || or simply juxtaposition;
seeing the "+", REXX looks to do a numeric operation
of ADD, so it treats the values as numbers.
Wayne Bell
UniGroup, Inc.
Not true; both produce "22":
System.out.println("In main");
System.out.println("2 + quoted 2 = " + (2 + "2"));
System.out.println("quoted 2 + 2 = " + ("2" + 2));
System.out.println("Leaving main");
yields:
In main
2 + quoted 2 = 22
quoted 2 + 2 = 22
Leaving main
Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
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Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
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