What is the difference between mutable and immutable objects in the co

What is the difference between mutable and immutable objects in the context of the Java programming language?

Answer»

Mutable objects - Objects that can have their value altered after initialization are known as mutable objects. After the object is formed, we can update its values, such as FIELDS and states. Java.util.Date, StringBuilder, and StringBuffer are just a few examples. When we update the value of an existing mutable object, no new object is generated; instead, the value of the existing object is changed. The classes of these objects contain methods for making modifications to them.
Immutable objects - Immutable objects are those whose values cannot be modified once they have been created. We are unable to make any changes to the object once it has been created. Primitive objects such as int, long, float, and double, as WELL as all legacy classes, Wrapper class, and String class, are examples. In a nutshell, immutable refers to something that cannot be changed or modified. The object values and state of immutable objects cannot be modified once they have been created. For immutable objects, only Getters (get() method) and not Setters (SET() method) are available.

The following table LISTS the differences between mutable objects and immutable objects:

Mutable Objects	Immutable Objects
Without creating a new object, mutable objects can be altered to any value or state.	Immutable objects, on the other hand, cannot have their value or state modified after they have been formed. Whenever we modify the state of an immutable object, a new object is produced.
Mutable objects have a method for changing the object's content.	Immutable objects, on the other hand, do not have any methods for changing their values.
Setters and getters are both supported by mutable objects.	Immutable objects, on the other hand, only support setters and not getters.
Mutable objects may or may not be thread-safe.	Immutable objects are thread-safe by default.
StringBuffer, Java.util.Date, StringBuilder, and other mutable classes are examples.	Legacy classes, wrapper classes, String classes, and other immutable objects are examples.