How to post code in wordpress

The way to post code in wordpress is as follows:
wrap your code in the following tags
[sourcecode language='java']…[/sourcecode]
And the presentation would be like this:

// Paste your code here

But be careful /0 won’t be presented and certain symbols will show smileys !!

Q146 – ID Codes

// Accepted !!
// Using next_permutation function

Q530 Binomial Showdown

// Accepted !!

Q151-Power Crisis

// Accepted in 0.000 second!!

Q10105 – Polynomial Coefficients

// Accepted !!
// Combination problem