Difference Between Mutable And Immutable In Java
distinguishing mutable and immutable objects in Java
Difference Between Mutable And Immutable In Java
In Java, mutable objects are objects whose state can be changed after they are created, while immutable objects are objects whose state cannot be changed after they are created. When a mutable object is modified, its internal state is altered, while modifying an immutable object will result in creating a new object with the updated state. Immutable objects are generally considered more thread-safe and easier to reason about, as they prevent unintended changes to their state.|unique-id-789356|
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1 - Mutable objects: In Java, mutable objects are objects whose state can be modified after they are created. This means that the values of their attributes can be changed.
2) Immutable objects: On the other hand, immutable objects are objects whose state cannot be changed once they are created. This means that their attributes are fixed and cannot be altered.
3) Examples of mutable objects: Examples of mutable objects in Java include objects of classes such as StringBuilder, ArrayList, HashMap, and HashSet. These objects allow their contents to be modified.
4) Examples of immutable objects: Examples of immutable objects in Java include objects of classes such as String, Integer, LocalDate, and BigDecimal. Once these objects are created, their values cannot be changed.
5) Benefits of immutability: Immutable objects are inherently thread safe since they cannot be modified. They also simplify code, as they eliminate the risk of unintended changes to their state.
6) Benefits of mutability: In some cases, the ability to modify the state of an object can be beneficial, especially when the object's state needs to be updated frequently.
7) Immutable objects and functional programming: Immutability is a key concept in functional programming, where changing the state of objects is avoided to ensure code predictability and maintainability.
8) Training program recommendation: In a Java training program, it is essential to cover the concepts of mutable and immutable objects thoroughly. This understanding is crucial for writing efficient, bug free code and developing good programming practices. Exercises and examples demonstrating the use of both mutable and immutable objects can help students grasp these concepts effectively.
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