Construct Record For Free

A Java Record is a new way to declare a type in the Java language. Records were introduced to the Java language to reduce the boilerplate associated with Plain Old Java Objects (POJO). When creating a good POJO, a developer must implement an equals method, a toString method, and the corresponding getters.

A record class declares a sequence of fields, and then the appropriate accessors, constructors, equals , hashCode , and toString methods are created automatically. The fields are final because the class is intended to serve as a simple "data carrier".

The record type is a data type that you use to treat several different pieces of data as one unit, for example, name and phone number. Each of these units is called a variable of record type. Each piece of data is called an attribute.A data value or a variable for the record type is called a record.

You define a record by declaring a type with the record keyword, instead of the class or struct keyword. Optionally, you can declare a record class to clarify that it's a reference type. A record is a reference type and follows value-based equality semantics.

In Java, the record keyword is used to declare a special class type that acts as a data carrier i.e. model class or POJO class. This keyword is added to the Java language since JDK 14.

Records are distinct from classes in that record types use value-based equality. Two variables of a record type are equal if the record type definitions are identical, and if for every field, the values in both records are equal.

You use the record keyword to define a reference type that provides built-in functionality for encapsulating data. You can create record types with immutable properties by using positional parameters or standard property syntax: C# Copy. public record Person(string FirstName, string LastName); C# Copy.