为什么我有数组 [] 选项作为构造函数调用？

Question

I have a class for example GooglePlayConnection. When I create object of this class without variable initialization (just to invoke method) new GooglePlayConnection() IDEA suggest to me 2 options: like default empty constructor () and .. array []? What does it mean?

I don't have any constructors in these classes.

Answer 1

You don't have to provide any constructors for your class, but you must be careful when doing this. The compiler automatically provides a no-argument, default constructor for any class without constructors.

https://docs.oracle.com/javase/tutorial/java/javaOO/constructors.html

Answer 2

...and .. array []? What does it mean?

It's to create a GooglePlayConnection array :

GooglePlayConnection[] connections = new GooglePlayConnection[10];
connections[0] = new GooglePlayConnection(/*...*/);
// ...

or

GooglePlayConnection[] connections = new GooglePlayConnection[] {
    new GooglePlayConnection(/*...*/),
    // ...
};