Answer:
B. a tag
Explanation:
In the structure definition given below:
struct Employee
{
string name;
int idNum;
};
Employee corresponds to the tag of the structure. The tag is used to create additional instances of the structure. For example:
struct Employee e1;
struct Employee e2;
name and idNum are members of the Employee structure and are referenced using the dot notation. e.g.,
struct Employee e1;
e1.idNum=1;
C to organize data in a table
Acest lucru nu este calculator și tehnologie acest lucru arata ca acesta poate fi un poem pare rău, dar acest lucru trebuie postat in categoria engleză!! Mulțumesc
Answer:
d. public myClass( ) {. . .}
Explanation:
A constructor is a special method that is called when an object of a class is created. It is also used to initialize the instance variables of the given class. A class may have one or more constructors provided that these constructors have different signatures. A class that does not have a constructor explicitly defined has a default parameterless constructor.
Having said these about a constructor, a few other things are worth to be noted by a constructor.
i. In Java, a constructor has the same name as the name of its class.
For example, in the given class <em>myClass</em>, the constructor(s) should also have the name <em>myClass</em>.
ii. A constructor does not have a return value. It is therefore wrong to write a constructor like this:
<em>public void myClass(){...}</em>
This makes option a incorrect.
iii. When a constructor with parameters is defined, the default parameterless constructor is overridden. This might break the code if some other parts of the program depend on this constructor. So it is advisable to always explicitly write the default parameterless constructor.
This makes option d a correct option.
Other options b and c may also be correct but there is no additional information in the question to help establish or justify that.
