Compile Name Record For Free

The main difference between class and record type in C# is that a record has the main purpose of storing data, while class define responsibility. Records are immutable, while classes are not.

You define a record by declaring a type with the record keyword, modifying a class or struct declaration. Optionally, you can omit the class keyword to create a record class .

For records, value equality means that two variables of a record type are equal if the types match and all property and field values match. For other reference types such as classes, equality means reference equality. That is, two variables of a class type are equal if they refer to the same object.

Objects provide a flexible data structure that can contain any data type, while Records are ideal for storing data with specific structures that can be indexed using specific keys, such as unique IDs.

To create a record, call its constructor and pass all the field information in it. We can then get the record information using JVM generated getter methods and call any of generated methods.

More information about records, including descriptions of the implicitly declared methods synthesized by the compiler, can be found in section 8.10 of The Java Language Specification . A record class is a shallowly immutable, transparent carrier for a fixed set of values, called the record components.

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. So as you can see, with the new record type, you can save a lot of time when coding such POJO classes.

Like enum , record is also a special class type in Java. It is intended to be used in places where a class is created only to act as plain data carrier.

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".

Records are immutable data classes that require only the type and name of fields. The equals, hashCode, and toString methods, as well as the private, final fields and public constructor, are generated by the Java compiler.