Re: compiler question

Sun, 29 Jun 2008 11:25:56 -0700 (PDT), ankur
<ankur.a.agarwal@xxxxxxxxx> wrote, quoted or indirectly quoted someone
who said :

if (weight < 10) thePrice = 1000;
if (weight > 50) thePrice = 5000;
if (weight >= 10) thePrice = weight*10; // Always
executed.
System.out.println("The price is: " + thePrice); // (1)

You are presuming greater intelligence of the compiler than it has.

Is sees this blurrily something ilke

if ( somethingoroother ) assign price
if ( somethingelse ) assign price
if (yetanothingh thing) assign price

Had you written this as:


if (weight < 10)
{
thePrice = 1000;
}
else if (weight > 50)
{
thePrice = 5000;
}
else
{
thePrice = weight*10;
}

Then it could be absolutely sure thePrice will be assigned. It does
not have to analyse the conditional expressions to know this.

--

Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com
.

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