Answer:
scope    
Explanation:
Destructor is a member function and it call automatically when the class object goes out of scope.
Out of scope means, the program exit, function end etc.
Destructor name must be same as class name and it has no return type.
syntax:
~class_name() { }; 
For example:
class xyz{
   xyz(){
         print(constructor);
    }
 ~xyz(){
         print(destructor);
    }
}
int main(){
     xyz num;
    
}//end program
when the object is create the constructor will called and when the program end destructor will call automatically.
 
        
             
        
        
        
The answer is smart card readers. Smart card readers can be implemented as part of an authentication system to verify the identification of employees.
        
             
        
        
        
The union of two tables is basically the total of the two tables, so "or" questions would be my guess.
        
             
        
        
        
Answer:
public static String repeat(String text, int repeatCount) {
    if(repeatCount < 0) {
        throw new IllegalArgumentException("repeat count should be either 0 or a positive value");
    }
    if(repeatCount == 0) {
        return "";
    } else {
        return text + repeat(text, repeatCount-1);
    }
}
Explanation:
Here repeatCount is an int value. 
at first we will check if repeatCount is non negative number and if it is code will throw exception. 
If the value is 0 then we will return ""
If the value is >0 then recursive function is called again untill the repeatCount value is 0.
 
        
             
        
        
        
The sole proprietorship it is the simplist business form under which one can operate a business. the answer is one.