\n- Private fields<\/li>\n
- Getter and Setter Methods<\/li>\n
- Constructors<\/li>\n
- hashCode(), equals(), and toString() methods.<\/li>\n<\/ul>\n
The excessive use of words is a factor contributing to the strong interest in Kotlin and Project Lombok.<\/p>\n
The frustration of writing these generic methods every time has led to the creation of shortcuts in Java IDEs like Eclipse and IntelliJ IDEA.<\/p>\n
This screenshot displays the Eclipse IDE feature that allows you to automatically create the required methods for a class.<\/p>\n
![\"Eclipse](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/655ce675c40ba52feef2a8c0\/9-0.png\" "\\"\\"")
<\/div>\n
The purpose of Java Records is to eliminate verbosity by offering a concise way to create POJO classes.<\/p>\n
How to Generate Java Records<\/h2>\n
To create Records in your Java projects, you require two things – Java Records, a preview feature developed as part of JEP 359.<\/p>\n
\n- \n
Make sure JDK 14 is installed. If you are using an IDE, it should also have Java 14 support. Eclipse and IntelliJ both have support for Java 14, so we are all set there.<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
To enable the preview feature, remember that it is disabled by default. In Eclipse, you can enable it by adjusting the Java Compiler settings for the project.<\/ol>\n![\"Java](\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/655ce675c40ba52feef2a8c0\/14-0.png\" "\\"\\"")
<\/div>\n
Using the option –enable-preview -source 14 in the command line allows you to activate Java 14 preview features.<\/p>\n
Suppose I wish to generate an Employee model class. The code will resemble something like this.<\/p>\n
package<\/span> com.<\/span>scdev.<\/span>java14<\/span>;<\/span>\r\n\r\nimport<\/span> java.<\/span>util.<\/span><\/span>Map<\/span><\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> Employee<\/span> {<\/span>\r\n\r\n\tprivate<\/span> int<\/span> id;<\/span>\r\n\tprivate<\/span> String<\/span> name;<\/span>\r\n\tprivate<\/span> long<\/span> salary;<\/span>\r\n\tprivate<\/span> Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span><\/span> addresses;<\/span>\r\n\r\n\tpublic<\/span> Employee<\/span>(<\/span>int<\/span> id,<\/span> String<\/span> name,<\/span> long<\/span> salary,<\/span> Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span><\/span> addresses)<\/span> {<\/span>\r\n\t\tsuper<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tthis<\/span>.<\/span>id =<\/span> id;<\/span>\r\n\t\tthis<\/span>.<\/span>name =<\/span> name;<\/span>\r\n\t\tthis<\/span>.<\/span>salary =<\/span> salary;<\/span>\r\n\t\tthis<\/span>.<\/span>addresses =<\/span> addresses;<\/span>\r\n\t}<\/span>\r\n\r\n\tpublic<\/span> int<\/span> getId<\/span>(<\/span>)<\/span> {<\/span>\r\n\t\treturn<\/span> id;<\/span>\r\n\t}<\/span>\r\n\r\n\tpublic<\/span> String<\/span> getName<\/span>(<\/span>)<\/span> {<\/span>\r\n\t\treturn<\/span> name;<\/span>\r\n\t}<\/span>\r\n\r\n\tpublic<\/span> long<\/span> getSalary<\/span>(<\/span>)<\/span> {<\/span>\r\n\t\treturn<\/span> salary;<\/span>\r\n\t}<\/span>\r\n\r\n\tpublic<\/span> Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span><\/span> getAddresses<\/span>(<\/span>)<\/span> {<\/span>\r\n\t\treturn<\/span> addresses;<\/span>\r\n\t}<\/span>\r\n\r\n\t@Override<\/span>\r\n\tpublic<\/span> int<\/span> hashCode<\/span>(<\/span>)<\/span> {<\/span>\r\n\t\tfinal<\/span> int<\/span> prime =<\/span> 31<\/span>;<\/span>\r\n\t\tint<\/span> result =<\/span> 1<\/span>;<\/span>\r\n\t\tresult =<\/span> prime *<\/span> result +<\/span> (<\/span>(<\/span>addresses ==<\/span> null<\/span>)<\/span> ?<\/span> 0<\/span> :<\/span> addresses.<\/span>hashCode<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\tresult =<\/span> prime *<\/span> result +<\/span> id;<\/span>\r\n\t\tresult =<\/span> prime *<\/span> result +<\/span> (<\/span>(<\/span>name ==<\/span> null<\/span>)<\/span> ?<\/span> 0<\/span> :<\/span> name.<\/span>hashCode<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\tresult =<\/span> prime *<\/span> result +<\/span> (<\/span>int<\/span>)<\/span> (<\/span>salary ^<\/span> (<\/span>salary >>><\/span> 32<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\treturn<\/span> result;<\/span>\r\n\t}<\/span>\r\n\r\n\t@Override<\/span>\r\n\tpublic<\/span> boolean<\/span> equals<\/span>(<\/span>Object<\/span> obj)<\/span> {<\/span>\r\n\t\tif<\/span> (<\/span>this<\/span> ==<\/span> obj)<\/span>\r\n\t\t\treturn<\/span> true<\/span>;<\/span>\r\n\t\tif<\/span> (<\/span>obj ==<\/span> null<\/span>)<\/span>\r\n\t\t\treturn<\/span> false<\/span>;<\/span>\r\n\t\tif<\/span> (<\/span>getClass<\/span>(<\/span>)<\/span> !=<\/span> obj.<\/span>getClass<\/span>(<\/span>)<\/span>)<\/span>\r\n\t\t\treturn<\/span> false<\/span>;<\/span>\r\n\t\tEmployee<\/span> other =<\/span> (<\/span>Employee<\/span>)<\/span> obj;<\/span>\r\n\t\tif<\/span> (<\/span>addresses ==<\/span> null<\/span>)<\/span> {<\/span>\r\n\t\t\tif<\/span> (<\/span>other.<\/span>addresses !=<\/span>