Groovy
Tutorial 1: Why Learn Groovy?
For most
people who are not java developers, Java is a language, the one used to write
Android apps. However, not only is Java a great language for Enterprise apps as
well as small computing devices such as card and FFID readers as well as smart cards,
it is a whole ecosystem compromising the language, the libraries as well as the
JVM.
The Java
Virtual Machine is a powerful tool that any programmer can harness, and can
technically run on a computer with no OS, which is what allows it to run on SIM
cards and other computing platforms that run firmware or with rudimentary OSes.
Several
languages can run on the JVM, including Groovy, Scala, JRuby, JPython and many
more. They allows for easy integration with Java, harnessing the benefits of
Java’s JVM while maintaining the syntax of the respective languages they are
derived from.
For Java
Developers however, Groovy is the language to go with. Any Java code is Groovy
code, and while most of the other languages running on the JVM can make the
same claim, Groovy is designed to maintain Java’s syntax. It offers features
that are only coming to Java such as closures and many more, more succinct and beautiful
code…
We will get
to more reasons for why you should learn Groovy, but here they are in passing:
Succinct
Extends the
JDK.
Meta programming!!!!
Flat
learning curve.
Fully
Dynamic.
It is fun
and awesome and cool and, am losing the plot here….
Here are a few
code samples to demonstrate Groovy’s succinctness:
HelloWorld.groovy
println 'Hello World'
Output
Hello Word
HelloYou.groovy
def name='My
name'
println "Hello
$name"
Output
Hello My name
PrintNames.groovy
def printName={it -> print "$it " }
def
names=["Groovy","is",'simply','Awesome']
names.each(printName) //the braces are optional
i.e. names.map printName
Output
Groovy is simply Awesome
Happy coding with Cabee Grovy Mastery
Course!!!
