Java MCQ: What is the primary purpose of Java Records?
Answer:
Explanation:
The primary purpose of Java Records is to simplify the creation of immutable data classes. Introduced in Java 14 as a preview feature and finalized in Java 16, records are a special kind of class in Java designed to hold data. They automatically provide commonly used methods like equals(), hashCode(), and toString(), and they make it easier to create classes that are solely focused on carrying data without requiring boilerplate code.
Unlike traditional Java classes, records are immutable by design, meaning that their fields cannot be modified after the record is created. This immutability makes records an excellent choice for representing simple data structures where the focus is on the data rather than behavior.
When you define a record, you only need to specify the fields, and the compiler automatically generates the constructor, accessors (getters), and methods like equals(), hashCode(), and toString(). This results in more concise and readable code, which is easier to maintain.
Overall, Java Records provide a modern, efficient way to create immutable data classes, reducing the amount of boilerplate code and promoting a more functional programming style in Java.
Reference links:
https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html