Given the class below, tell to what value the default constructor initializes the data member. Name this initialization technique and give another way to write the constructor.
What will be an ideal response?
```
class A
{
public:
A();
private:
int a;
};
A::A() : a(17)
{
//deliberately empty
}
```
This is a base (or member) initializer list, albeit a short one. The alternate
way to initialize in this constructor follows.
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