Objects class provides helper functions applicable to all objects such as equals, hashCode, etc. Class Declaration Following is the declaration for com.google.common.base.Objects class − @GwtCompatible public final class Objects extends Object Class…
Ordering class can be seen as an enriched comparator with enhanced chaining functionality, multiple utility methods, multi-type sorting capability, etc. Class Declaration Following is the declaration for com.google.common.collect.Ordering<T> class − @GwtCompatible public…
Preconditions provide static methods to check that a method or a constructor is invoked with proper parameter or not. It checks the pre-conditions. Its methods throw IllegalArgumentException on failure. Class…
Optional class is an immutable object used to contain a not-null object. Optional object is used to represent null with absent value. This class has various utility methods to facilitate…
Local Environment Setup If you are still willing to set up your environment for Java programming language, then this section guides you on how to download and set up Java…
What is Guava? Guava is an open source, Java-based library and contains many core libraries of Google, which are being used in many of their projects. It facilitates best coding…
Meta object programming or MOP can be used to invoke methods dynamically and also create classes and methods on the fly. So what does this mean? Let’s consider a class…
Groovy’s template engine operates like a mail merge (the automatic addition of names and addresses from a database to letters and envelopes in order to facilitate sending mail, especially advertising,…
The fundamental unit of an object-oriented system is the class. Therefore unit testing consists of testig within a class. The approach taken is to create an object of the class…
The Groovy shell known as groovysh can be easily used to evaluate groovy expressions, define classes and run simple programs. The command line shell gets installed when Groovy is installed.…