What is the use of the Random(long) constructor?

Question

There are 2 constructors of Random class

1. public Random()
2. public Random(long seed)

The description fo

Answer 1

I wonder whether what you want to ask is about distinguishing the default constructor and argument constructor. When you instantiate a new Random object, you can code this:

Random random=new Random();

In this way, we invoke the default constructor, i.e no argument constructor. But if you code this:

Random random=new Random(47);

we invoke a constructor which argument is 47.

It is similar to C language; a seed will "randomly" create a number if you use the same seed and no matter when it will not change. But if you choose the first method, the number will modify once running!