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unfamiliar syntax

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Join Date: Nov 2006

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Reputation: kimbokasteniv is an unknown quantity at this point

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kimbokasteniv kimbokasteniv is offline

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unfamiliar syntax

Feb 6th, 2007

I was going through the questions in my study guide for computer science, and I noticed a few blocks of code that contained syntax that I had never used before.

My first question is on the ^ operator.
What exactly does this do?

My second questions is on the use of : and ? in if and for statements.
What exactly do these operators do?

Here are the blocks of code that they are featured in:

int x= 2^3;

System.out.println((x<y)?((y<z)?z:y):

                           ((x<z)?x:z));

If someone could atleast point me to a web page that explains those operators, I would much appreciate it.

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Join Date: May 2006

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Reputation: Infarction has a spectacular aura about

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Infarction Infarction is offline

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Battle Programmer

Re: unfamiliar syntax

Feb 6th, 2007

^ is a bitwise XOR operator. It can only be used on primitive integer types.

?: is the ternary operator, so named because it takes three parts (see example below). It's shorthand for an if-else clause.

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
if(condition)
  foo();
else
  bar();
// can also be done as:
condition ? foo() : bar();
if(condition)
  foo();
else
  bar();
// can also be done as:
condition ? foo() : bar();