Answer:
Basically it creates a unique identifier for each row in your table and that can help you link your table to other tables using primary key as link
Explanation:
"Primary key allows you to create a unique identifier for each row in your table. It is important because it helps you link your table to other tables (relationships) using primary key as links."
The following cools the air in a household refrigerator: Absorption of the heat from the air due to evaporation of the liquid refrigerant . Correct answer:B
The function of the refrigerator is to absorb heat into the refrigeration system. The evaporator is placed in the area to be cooled. The refrigerant vaporizes from the heat it absorbs heat in the evaporator.
It grows but not drastically but you’ll be able to see the difference of length in a few months or even years depending on the person.
Answer:
This statement is correct.
Explanation:
If a function does not have any parameters, then we can create the variable inside the function which will be private and call the function from the main function.
If we specify any return type like int, float or char, etc then we need to declare a return value from the function.
But If we specify the Void then we don't need to return value inside the function, we can directly print the value inside function.
Ex.
void add()
{
int a=7;
int b=9;
int c=a+b;
System.out.println("the added value is :"+c);
}
