What is the difference between immutable and final in java?

Question

I was recently asked this quesion. But was not able to explain concisely what exactly sets both these concepts apart.

For example

Final and Immutable:<

Answer 1

final ensure that the address of the object remains the same. Where as the Immutable suggests that we can't change the state of the object once created.

final is just a keyword whereas Immutable is a pattern.

In Case of your first question you have marked the variable as final, which means you would not be able to change the memory address of it and can't assign a value once more.

In case of your second question Immutable ensures you can't change the state of the object you have created.