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3 years ago

To print the last element in the array named ar, you can write :A. System.out.println(ar.length);

Computers and Technology

1 answer:

timofeeve [1]3 years ago

3 0

Answer:

Option (d) is the correct answer.

Explanation:

An Array is used to store multiple variables in the memory in the continuous memory allocation on which starting index value is starting from 0 and the last index value location is size-1.

In java programming language the array.length is used to tells the size of the array so when the user wants to get the value of the last element, he needs to print the value of (array.length-1) location so the correct statement for the java programming language is to print the last element in the array named ar is--

System.out.println(ar[ar.length-1]);

No option provides the above statement, so option d (None of these) is correct while the reason behind the other option is not correct is as follows--

Option a will prints the size of the array.
Option b also gives the error because length is an undeclared variable.
Option c will give the error of array bound of an exception because it begs the value of the size+1 element of the array.

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Students who finish their homework after school are meeting a. intrapersonal and short-term goals b. normative and short-term go

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Answer: a. intrapersonal and short-term goals

Explanation:

Intrapersonal goals are those that we set for ourselves in our minds to accomplish. The students that are finishing their homework after school most probably set that goal in their minds and so meeting it would mean meeting their intrapersonal goals.

Homework is not a long term project but rather a short one that is usually meant to be completed within days. Completing it is therefore a short term goal.

The students who finish their homework after school are therefore accomplishing both their intrapersonal and short-term goals.

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3 years ago

Read 2 more answers

In web developing, what are the differences between front-end developer, back-end developer and full stuck developer?

Ilia_Sergeevich [38]

When it comes to front end, back end and full stack developer, the difference is determined by :

front end (the visible parts of a website)

back end (the “under the hood” databases and infrastructure)

full stack (a hybrid of both)

And front end developers work on technologies that are used to build front end(which is what clients visiting that website see)of application like HTML,CSS, Javascript ( Node js, Angular are also now used ).

Similarly back end developers work on back end technologies like Node js.

Full stack developers work on both front end and back end developers and know both end technologies as well.

For example :

MEAN Stack developer where

M stands for Mongoose ( Back end database technology )

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3 years ago

Exodia Principle of Computer Operation

tamaranim1 [39]

Answer:

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Explanation:

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3 years ago

Match the term to its correct defintion

emmasim [6.3K]

Answer:

View Base tables: Virtual table based on a SELECT query

CREATE VIEW statement: Data definition command that stores the query specification in the data dictionary

DROP VIEW statement: Data definition command that removes the query specification in the data dictionary

Explanation:

Views are virtual tables, which can be created by select queries using the real database tables.

Creating and dropping views can be done by the CREATE VIEW and DROP VIEW statements.

CREATE VIEW syntax:

CREATE VIEW view_name AS

SELECT column1, column2, ...

FROM table_name

WHERE condition;

DROP VIEW syntax:

DROP VIEW view_name;

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3 years ago

SMTP (Simple Mail Transfer Protocol) is the standard protocol for transferring mail between hosts over TCP. A TCP connection is

ruslelena [56]

Answer:

The five rules are described as follows:

Rule A permits the inbound Simple Mail Transfer Protocol (SMTP) connection.

Rule B permits the inbound Simple Mail Transfer Protocol (SMTP) connection.

Rule C permits the outbound Simple Mail Transfer Protocol (SMTP) connection.

Rule D permits the outbound Simple Mail Transfer Protocol (SMTP) connection.

Rule E does not perform any action. Thus it is when the action is denied.

Explanation:

Rule A allows information transfer of the incoming email from the external server to the internal remote server, thus this allows an inbound connection.

Rule B allows information transfer of the incoming email from the remote server to the external remote server, thus this allows an inbound connection.

Rule C allows information transfer of outgoing email from the external server to the internal remote server, thus this allows an outbound connection.

Rule D allows information transfer of the outgoing email from the remote server to the external remote server, thus this allows an outbound connection.

Rule E does not allow any action in either direction thus it is when action is denied.

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3 years ago