iterate

Scala FAQ: Can you share some examples of using tuples in Scala?

A Scala tuple is a class that can contain a miscellaneous collection of elements. I like to think of them as a little bag or container you can use to hold things and pass them around.

You create a tuple with the following syntax, enclosing its elements in parentheses. Here's a tuple that contains an Int and a String:

Java String array FAQ: Can you share some Java array examples, specifically some String array examples, as well as the Java 5 for loop syntax?

Sure. In this tutorial, we'll show how to declare, populate, and iterate through a Java String array, including the Java 5 for loop syntax. Because creating a String array is just like creating and using any other Java object array, these examples can also work as more generic object array examples.

AppleScript for loop FAQ: How do I use an AppleScript for loop? (Also, how do you use an AppleScript while loop?)

This is actually a bit of a trick question, as there is no AppleScript for loop or while loop syntax. Instead you use the AppleScript repeat command, as shown in the following examples.

AppleScript for loop examples

Where you might expect an AppleScript for loop to iterate over a list, you use the AppleScript "repeat with" syntax:

PHP array FAQ: How do I iterate (loop) through a PHP array?

Answer: The easiest way to loop through a PHP array is to use the PHP foreach operator. If you have a simple one-dimensional array, like the $argv array which lets you access command line arguments, you can loop through it like this:

Perl loop FAQ: Can you share some "Perl loop" examples (Perl for loops, foreach loops, and Perl arrays)?

I've written a variety of "Perl loop" stories before, but I've never shown all the different Perl loop operators in one place before. In this Perl tutorial I'll try to provide a summary of the different Perl loop constructs.

A simple Perl array

Before showing any Perl loop examples, we'll need an array to work with. Here's a simple Perl array that contains five strings: