👉 In computer science, an immutable object is a type of data that cannot be changed after it has been created. In other words, immutable objects are those that cannot be modified or altered in any way once they have been assigned to a particular variable or object. For example, consider the following code: ``` int x = 10; int y = x; // This line of code will produce an error x += 5; // The value of x will change after this line