Different processing of object arrays by Java and C + +

c++| Object | array problem:
public class Test
{
public static void Main (string[] args)
{
Person[] A = new person[2];

for (int i = 0; i < 2; i++)
{
A[i].age = i; Null pointer exception
System.out.println (A[i].age);
}
}
}

Class Person
{
public int age;

public person (int age)
{
This.age = age;
}

}

Thinking:
An array class is a special class supported by a virtual machine that is created by the opcode NewArray and is an instance of the array class. Person[] A = new person[2] Just created an array object on the object element Person[0] Person[1 does not allocate space (this is not the same as C + + C + + in creating an object array that is also assigned space person * a = new person[2])