Updated naming again

1.HelloWorld/2.FormattedPrint/1Debugging.rs

@@ -0,0 +1,38 @@
+// Derive the `fmt::Debug` implementation for `Structure`. `Structure`
+// is a structure which contains a single `i32`.
+#[derive(Debug)]
+struct Structure(i32);
+
+// Put a `Structure` inside of the structure `Deep`. Make it printable
+// also.
+#[derive(Debug)]
+struct Deep(Structure);
+
+#[derive(Debug)]
+struct Person<'a>{
+	name: &'a str,
+	age: u8
+}
+
+fn main(){
+	//Printing with `{:?}` is similar to with `{}`.
+	println!("{:?} months in a year.", 12);
+	println!("{1:?} {0:?} is the {actor:?} name.",
+			 "Slater",
+			 "Christian",
+			 actor="actor's");
+
+	//`Structure` is printable!
+	println!("Now {:?} will print!", Structure(3));
+	
+	//The problem with `derive` is there is no control over how
+	//the results look. What if I want this to just show a `7`?
+	println!("Now {:?} will print!", Deep(Structure(7)));
+	
+	let name = "Peter";
+	let age = 27;
+	let peter = Person { name, age };
+
+	//Pretty print
+	println!("{:#?}", peter);
+}