Package modernfeatures.java16

Record Class SimpleRecordDemo.Person

java.lang.Object
java.lang.Record
modernfeatures.java16.SimpleRecordDemo.Person
Enclosing class:
SimpleRecordDemo
public static record SimpleRecordDemo.Person(String name, int age) extends Record
A record is a special data carrier class in Java that is immutable and compact.

The record automatically generates:

  • Accessors for each component (e.g., name(), age())
  • toString() method
  • equals() and hashCode() methods
  • Canonical constructor

  • Constructor Summary

    Constructors
    Constructor
    Description
    Person(String name, int age)
    Creates an instance of a Person record class.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    age()
    Returns the value of the age record component.
    final boolean
    equals(Object o)
    Indicates whether some other object is "equal to" this one.
    final int
    hashCode()
    Returns a hash code value for this object.
    String
    name()
    Returns the value of the name record component.
    final String
    toString()
    Returns a string representation of this record class.

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • Person

      public Person(String name, int age)
      Creates an instance of a Person record class.
      Parameters:
      name - the value for the name record component
      age - the value for the age record component

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with '=='.
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • name

      public String name()
      Returns the value of the name record component.
      Returns:
      the value of the name record component

    • age

      public int age()
      Returns the value of the age record component.
      Returns:
      the value of the age record component