Is memory allocated when an array is declared? Do the elements in the array have default values? What happens when the following code is executed? int numbers[30]; cout

Is memory allocated when an array is declared? Do the elements in the array have default values? What happens when the following code is executed?

int numbers[30];
cout < "numbers[0]="" is="" "="">< numbers[0]=""><>
cout < "numbers[29]="" is="" "="">< numbers[29]=""><>
cout < "numbers[30]="" is="" "="">< numbers[30]=""><>