{} syntax in the Class code block

Question

What is the purpose of the {} after the constructor and before a function in a Class?
Thank you.

Answer 1

A constructor needs to have a body in which you can tell it what to do.
It doesn't matter if it does not do anything but still it needs to have curly braces { }.
Constructor is a method in general so it should have { }.

Answer 2

class MyClass2{
public:
MyClass2(int a): var(a)
{} // This is what I am referring to. What is this for?
void printInfo(){
cout<<var<<endl;
cout<<this->var<<endl;
cout<<(*this).var<<endl;
}
private:
int var;
};

Thank you for the immediate response. But I still don't get it. Please see the code above to get in line with my thought. Thank you.

Answer 3

@Avinesh You are a gem! Thank you!

Answer 4

Consider it as a container.
You need a job to be done?, just put it inside { } with the required conditions to get the expected result.