Answer:
The last option i.e "A class is an instance of its object" is the correct answer of this question.
Explanation:
A class is a collection of variable and method . The class is the blueprint of the object that means class is physical space entity and object is a runtime space entity.It is the the reusability feature of the programming component.
Following are the syntax to declare any class.
Class classname
<u>For Example</u>: class test1
With the help of class we can achieve the inheritance, encapsulation and abstraction etc.
All the other options except the last one are correct option. Because option(1), option(2) and option(3) follow the property of class and object . that's why last option is False.
Answer:
Relational query language is the language that is used in the queries of the relational databases that has rows and columns in table. The user or client presents a request for gaining the information from the database. The relationships in the database are defined in numerous ways which creates the query.
This language can be procedural form or non-procedural form.The operations performed by this language are communication with the relational database, analyzing the relationships between the entities of database,splitting the request from client and then execution of that request is done by database management system(DBMS), etc.
Answer:
Learning opportunities for AI can be extended to all through the inclussion of courses and different teaching methods related to Artificial Intelligence, new technologies, computer science, programming and, in short, everything related to the digital world, in the educational plans at the national level. This is so because artificial intelligence and computer systems are the basis for the development of the new tools jobs of tomorrow. Thus, education in these subjects is essential so that citizens can enter the labor market once they acquire the necessary age, having the knowledge to do so in a proper way.
Answer:
Let the two string type variables be var1 and var2. The value stored in these two variables is : The "use" of quotations causes difficulties.
- The variable which uses quoted string:
string var1 = "The \"use\" of quotations causes difficulties.";
- The variable which does not use quoted string:
string var2 = "The " + '\u0022' + "use" + '\u0022' + " of quotations causes difficulties.";
- Another way of assigning this value to the variable without using quoted string is to define a constant for the quotation marks:
const string quotation_mark = "\"";
string var2 = "The " + quotation_mark + "use" + quotation_mark + " of quotations causes difficulties.";
Explanation:
In order to print and view the output of the above statements WriteLine() method of the Console class can be used.
Console.WriteLine(var1);
Console.WriteLine(var2);
In the first statement escape sequence \" is used in order to print: The "use" of quotations causes difficulties. This escape sequence is used to insert two quotation marks in the string like that used in the beginning and end of the word use.
In the second statement '\u0022' is used as an alternative to the quoted string which is the Unicode character used for a quotation mark.
In the third statement a constant named quotation_mark is defined for quotation mark and is then used at each side of the use word to display it in double quotations in the output.
