How do I choose between pass by value and pass by reference?

What’s the difference between pass by value and pass by reference?

Pass by value means a copy of the variable is passed, while pass by reference means a reference to the original variable is passed.

When should I use pass by value?

Use pass by value when you want to ensure the original data remains unchanged, especially for primitive types.

And when is pass by reference more appropriate?

Pass by reference is better for large data structures or when you need to modify the original data.

Can you give me an example of each?

Sure! In Java, primitives are passed by value, while objects are passed by reference. For example, modifying an object in a method affects the original.