Java member initialization

Question

What is the difference between:

public class A
{
    private int x = 1;
    A() {}
}

and

public class A
{
    private int x;
    A() { x = 1; }
}

, if any?

Answer 1

If you are asking from a practical point of view, the difference is that with the second form of initialization you will have to repeat it for every constructor that you write, were you to write many overloaded constructors.

Answer 2

1. In second case you repeating the of initializing x=0 because as it is instance variable so it will be initialized to 0 by default.
2. This can be difference if multiple constructors will be there.else i dont think any other difference.