This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Hi: everyone I want to konw that how to make sure a int number is numberic tpye? in other words, which method can return a boolean value if I input a numberic value ? I mean a method can judge whether a value is a numberic value or not.