[J17] Add manual loading (j17style) example description

Author: temikfart

img/Java 17. Manual Loading (Java 17 style).jpg

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+## Java 17. Manual Loading (Java 17 style)
+---
+**Task:** load any application class using a custom class loader (`CustomClassLoader`) in Java 17 style (with `module-info.java`).
+
+### Solution
+---
+Modules (declared via `module-info.java`):
+- `manual.onemodule.j17style`:
+    - [`Main`](src/ru/ispras/j17/manual/onemodule/j8style/Main.java) - a class containing the `main` method, where an instance of the `CustomClassLoader` class is created, the `Cat` class is loaded using it, creating an instance of the class `Cat` and calling the `Cat::talk` method;
+    - [`Cat`](src/ru/ispras/j17/manual/onemodule/j8style/Cat.java) - loadable class with the `talk` method, which prints the string *"Meow"* to `stdout`;
+    - [`CustomClassLoader`](src/ru/ispras/j17/manual/onemodule/j8style/CustomClassLoader.java) - a class that is an implementation of a custom class loader.
+
+### Run
+---
+> Using `classpath` the results are the same as in [[Java 17. Manual Loading (Java 8 style)]].
+
+Using `modulepath`:
+
+```shell
+java17 -p . -m manual.onemodule.j17style
+```
+
+Output:
+
+```shell
+Main Class Module is module manual.onemodule.j17style
+Cat Class Module is unnamed module @f6f4d33
+Main Class ClassLoader is jdk.internal.loader.ClassLoaders$AppClassLoader@4554617c
+Cat Class ClassLoader is ru.ispras.j17.manual.onemodule.j17style.CustomClassLoader@5acf9800
+Meow
+```
+
+### Explanation
+---
+![Java 17. Manual Loading (Java 17 style).jpg](../../../../img/Java%2017.%20Manual%20Loading%20(Java%2017%20style).jpg)
+
+- Regarding [[Java 17. Manual Loading (Java 8 style)|Java 17. Manual Loading (Java 8 style)]] is different with the module name `manual.onemodule.j17style` in the `jar` file, which is anchored with `module-info .java`, so this module is considered an **Application Module**, and not an **Automatic Module**.
+
+### Notes
+---
+*Same as in [[Java 17. Manual Loading (Java 8 style)|Java 17. Manual Loading (Java 8 style)]]*.