Lombok Font is the new and stylish font family, it is the best option for body text. It gives the creative and unique output to the design.
Aqua is a trendy sans serif font with condensed proportions. The typeface comes in 8 weights with a geometrical aesthetics and slight neo-grotesque characteristic.
Java2s.com © Demo Source and Support. All rights reserved. Added Lombok-plugin.jar and patch in gobal libreries; Added dependency in gradle compile 'org.projectlombok:lombok:1.14.16' Intellij IDEA 2017 1.2. Jar makes sure the only cookies kept on your Mac are from sites in your history, bookmarks or top sites. No sites to block or unblock, 'Remove' buttons to click or maintenance to perform. What is Project Lombok? I copied and pasted the description of Project Lombok from here (Official Site). I couldn’t make a better sentence to explain it:). “Project Lombok is a java library.
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Anurati is an indisputable winner of a font, albeit on that is rapidly fitting saturated in lots of promotional substances.
We mainly use Ailerons to add a “basic” believe to site headlines and titles. Free modern day& bold form sans serif font from Luis Jaramillo.
Jul 08, 2020.
Beyno is a condensed sans serif font with tall uppercase letters which makes it superb for headings. Atami is a modern-day san-serif designed for aesthetically wonderful logotype.
Design Of Lombok Font
Lombok font is a based serif typeface with refined curves and strong serifs, which make headlines neat and attractive. We suggest retaining it above 14 pixels for greater readability.
McDonalds and Comedy important both were utilizing this exodus standout winner as of late, and so probably that is why I recently overheard a friend dangerous-mouthing it.
Yellowtail is a particularly fun script font. It is inspired by flat brush typefaces with medium weight and has its kind variety developed on Gillis Gothic and Kaufmann.
Press the green button and install this lovey font in your pc. Use this font in your projects.
I love Java, but there are few things that I hate about it. One of them is it’s verbosity. You have to write a lot of code to achieve what you could achieve with almost half or fewer lines of code in other functional/scripting languages.
There are many justifications for it’s verbosity -
While all of the above justifications are true, the amount of boilerplate code required to be written to do even minimal jobs can be very annoying.
Consider the following example of a Plain Old Java Object (POJO) -
This is a small class with only five fields, but we had to write almost 50 lines of code for something so simple. Most of the code in the above class was required to write getters and setters. Now, imagine hundreds of similar data classes in your project and imagine the number of lines of code that has to be written just to provide getters and setters.
Getters , Setters , toString , hashCode methods are something which are alike in almost all your data classes, So there must be a better way to handle these common constructs right?
Enter Project Lombok! It is an honest attempt to reduce Java’s boilerplate code using simple set of annotations.
How Project Lombok helps in reducing boilerplate code?
Project lombok works like magic from the outside. It provides you with a series of annotations that you can use in your classes. It, then generates and injects code into your classes at compile time by processing these annotations.
Let’s make the above User class boilerplate-free by using Lombok’s annotations -
The annotations
@Getter and @Setter will automatically generate the default getters and setters for all the fields in your class. Awesome! isn’t it?
Well! At this point, you might say that what’s the need for all this when any good IDE can generate getters and setters for you?
Yeah! But, think about it, the code for getters and setters will still lie around your class files and you will have to manage this code. Also, whenever you change or add a new property, you will need to modify existing getters/setters or add new ones.
But, with lombok, you won’t need to do any of it. You can just write your data classes and forget about other boilerplates.
Installation and Usage
Lombok is available as a single jar file on the Project’s website. Download
lombok.jar and follow the instructions here to install and use it in your development environment - Shadow complex remastered mac download.
Usage with javac
Lombok works out of the box with
javac . Just add it in the classpath while compiling your program and you’re ready to go!
Installing and using Lombok in eclipselombok.jar comes with an installer. Just double click the jar, the installer will open which will automatically detect all the supported IDE’s in your machine -
I have eclipse installed in my machine and the installer has detected it. Click
Install/Update to install lombok.jar in eclipse.
Note however that
lombok.jar will still need to be added in the classpath of any projects that will use lombok annotations. If you’re using maven, you can simply add the following dependencies in the pom.xml file to include lombok -
For gradle, add the following to your build.gradle file
If you don’t use any build system in your project, do the following to add lombok in classpath -
Installation in IntelliJ Idea
Lombok doesn’t have direct support for intellij idea. But there is a plugin that adds support for most features. To install lombok plugin in intellij -
That’s it. Now you can use lombok in your project. Don’t forget to add lombok dependencies as described above in your
pom.xml or build.gradle file.
Lombok Annotations
In this section I’ll discuss about different annotations provided by lombok for reducing boilerplate code. You can choose to use the annotations that fits your need -
1. @Getter and @Setter
Lombok’s
@Getter and @Setter annotations are used to generate the default getter and setter methods for the instance variables of a class.
These annotations can be applied at field level, or at class level. If you apply the annotations at class level, getters and setters will be generated for all the non-static fields of your class.
Let’s see an example -
The above lombok annotated code is equivalent to the following Java code -
The generated getter and setter methods will be public by default, but, you can modify this behaviour by specifying an
AccessLevel (PRIVATE, PROTECTED, PACKAGE, PUBLIC, or NONE) with the annotation -
Getter/Setter generation for any field can be disabled manually by using the special
AccessLevel.NONE access level. This lets you override the behaviour of @Getter , @Setter annotation on a class -
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Getters and Setters will not be generated if there is already a method with the same name and parameters in your class.
Lombok Jar Free Download2. @NonNull@NonNull annotation is used to generate null-checks for the annotated fields. If it is used on an instance variable, all the setter methods, or constructors generated by lombok will contain a null-check for that instance variable.
If the
@NonNull annotation is used on the parameter of a method or constructor, a null-check for that parameter will be inserted inside the method or constructor.
The null-check looks like -
if(param null) throw new NullPointerException('param'); . It is inserted at the very beginning of your method. For constructors, it is inserted immediately after any this() or supper() calls.
Note that, if a null check is already present at the top of a method or constructor, it will not be generated by lombok. Let’s consider a simple example -
The above annotated code is equivalent to the following java code -
3. @ToString
Add
@ToString annotation to your classes to generate an implementation of toString() method. The default implementation will print your class name along with the value of each fields separated by commas -
Following is the equivalent Java Code -
If you want to include field names as well in the toString() method, use
@ToString(includeFieldNames=true) .
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By default, all the non-static fields of the class will be printed. If you want to exclude some fields from toString(), use
@ToString(exclude='fieldName') . Moreover, you can specify exactly which fields to include in toString() using - @ToString(of={'field1', 'field2'})
Also, you can use
@ToString(callSuper=true) to include the output of the superclass implementation of toString() to the output.
4. @EqualsAndHashCode
You can annotate a class with
@EqualsAndHashCode to generate implementations of equals() and hashCode() methods. By default, it will use non-static and non-transient fields, but you can exclude more fields using exclude parameter, or, you can include selected fields using of parameter.
Also, like
@ToString , you can use callSuper=true with @EqualsAndHashCode as well. This will cause lombok to call the equals/hashCode method of super class before considering fields in the current class.
Project Lombok Jar
And following is the equivalent Java code -
5. @NoArgsConstructor, @RequiredArgsConstructor and @AllArgsConstructor@NoArgsConstructor will generate a constructor with no parameters. If this is not possible, typically, because of final variables which must be initialized, compiler will generate an error. If @NoArgsConstructor(force=true) is used then all the final variables will be initialized with 0/false/null.
The above lombok annotated code, after processing looks like -
@RequiredArgsConstructor generates a constructor with all un-initialized final fields and @NonNull fields. An explicit null check is also generated for fields marked with @NonNull -
For the above class, fields
id , name and department are not included in the generated @RequiredArgsConstructor because id and name are already initialized and department is neither final nor annotated with @NonNull . -
@AllArgsConstructor generates a constructor with all the fields in your class. Also, null-checks are added for fields marked with @NonNull .
6. @Data@Data annotation is the combination of @Getter , @Setter , @ToString , @EqualsAndHashCode and @RequiredArgsConstructor annotations. It lets you generate all the boilerplate code that is normally associated with a Plain Old Java Object (POJO) with just a single annotation.
Conclusion
We explored the most commonly used annotations provided by lombok. However, there are a lot of other useful annotations available in the library. Some of my favourites are -
I urge you to have a look at the Lombok’s Feature Page to explore these annotations as well. Thank you for reading my blog. Please ask any doubts or clarifications in the comment section below.
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