Creating a java library, a place where any problem can be resolved.
Starting with the next class, called SummerDelivery, a delivery service planned to refresh a hot summer day…
But if we running the command to order a PEACH_TENTATION or a FROZEN_APPLE:
The program doesn’t know how to prepare one of its offered beverages, it needs a source with beverages preparation knowledge.
So, having the source below, capable of resolving SummerDelivered needs, called TropicalJuice:
It’s necessary to include it inside SummerDelivery class to attend juice orders.
First of all, we compile TropicalJuice to a class file, executing the command below:
After, we package their .class files generated in a storage called tropical.jar, our java library, running the command below:
With the created tropical.jar, we add to SummerDeliver class the library new methods.
Adding the library in the first executed command:
Yep! Now SummerDelivery knows how to refresh this summer! But it still doesn’t know how to serve a Water glass. If you know how to resolve it, please feel free to add it and test it to practice.
- A problem happened.
- We create a solution to solve it.
- Package the solution as a library.
- Add it and test it.
- Problem fixed.
Command and options dictionary:
javarun .class and .java files.
javaccompile .java files and creates .class files.
-dindicate output folder.
-cpindicate compiled folders directory(classpath).
jarto execute actions related to java libraries.
—createindicate jar action command.
—fileindicates a name file.
- Java 11.
- Windows 10.