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Veseljchak [2.6K]
3 years ago
11

A file must be ________ before data can be written to or read from it. closed opened buffered initialized none of these

Computers and Technology
2 answers:
MrMuchimi3 years ago
8 0

Answer: Opened

Explanation:

  • File is defined as object that holds information, commands ,data etc and allotted with specific name known as file name.
  • A file needs to be opened for performing functions like reading, writing changing elements, saving any changes made  or closing etc.
  • Other options are incorrect because buffer is used for holding information before using it for short period of time.
  • Closing action can be performed only after opening a file. Initialization is defining any value that is required in program.
  • Thus , the correct option is opened.

just olya [345]3 years ago
5 0
Hello <span>Circe2633 </span><span>

Answer: A file must be opened before data can be written to or read from it. closed opened buffered initialized none of these

Hope this helps
-Chris</span>
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How does 5G technology enhance the Internet of Things (ioT) ?
Naddik [55]

Answer:

Internet of Things are everyday items that uses the internet, 5G internet enhances the internet service allowing you to connect, receive, or send information in places where internet would usually be slower like crowded areas. Through antennas using spectrum which carries information through different types of waves, it overall makes the internet service better, making the appliances on that internet service faster.

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Internet of Things are basically any everyday item that has software that connects to the internet, in which that item sends or even receives data from it connecting to different servers using an internet service.

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For your answer, since "internet of things are everyday items that uses the internet, 5G internet enhances the internet service allowing you to connect, receive, or send information in places where internet would usually be slower like crowded areas. Through antennas using spectrum which carries information through different types of waves, it overall makes the internet service better, making the appliances on that internet service faster."

Hope this helps.

4 0
2 years ago
What are the advantages of mine shaft gear and the disadvantaged​
romanna [79]

Answer:

One sheave means that you are using a single drum winder. They are the worst! Double drum winders control easier, brake better and are much more efficient. They save time ( two skips or cages) and can be clutched to perform faster shift transport. A single drum is slow, unbalanced and can be a nightmare if it trips out during hoisting. If the brake system is not perfect it can be a real hairy experience. For a runaway single drum, there is no counterbalance effect. It always runs to destruction. With a double drum, the driver still has a chance to control the winder to a certain extent and he has two sets of brakes to rely on. A single sheave could also mean a shaft with a single compartment. No second means of escape unless there are ladders or stairways. Not a very healthy situation.

Those are just a few points. I am sure much more can be said in favor of a double drum winder and two or more sheaves in the headgear. Most of the shafts I have worked at have multiple winders and up to ten compartments. They all have a small single drum service winder for emergencies and moves of personnel during shift times. They are referred to as the Mary - Annes. Apparently, the name originated in the U.K. where an aristocratic mine owner named the first such winder after his mistress.

Explanation:

<em>Hope you got it </em>

<em>If you have any question just ask me</em>

<em>If you think this is the best answer please mark me as BRAINLIEST</em>

5 0
3 years ago
Write an application that displays appropriate prompts to the user and reads a person
vfiekz [6]

Answer:

The program to this question can be given as:

Program:

import java.util.*; //import package  

public class Person_detail //define class

{

public static void main(String ar[]) //define main function

{

String Name,hobby,dream_Job; //declare variable.

int age;

Scanner sc = new Scanner(System.in); //creating Scanner class object for user input.

System.out.print("Enter Your Name : "); //message  

name = sc.next(); //user input

System.out.print("Enter Your Age : ");

age = sc.nextInt();

System.out.print("Enter Your hobby: ");

hobby = sc.next();

System.out.print("Enter Your aim: ");

aim = sc.next();

//print values.

System.out.println("Hello, my name is "+name+" and I am "+age);

System.out.println("years old.My hobby is playing "+hobby+".");

System.out.println("I want to be a "+aim+" when I grow up!");

}

}

Output:

Hello, my name is XXX and I am 21

years old.My hobby is playing cricket .

I want to be a cricketer when I grow up!.

Explanation:

In the above program firstly we import the package for user input. Then we declare a class that is Person_detail. In this class, we declare the main function. In the main function, we declare a variable that is name, hobby, aim, and age. In these variable first 3 variables datatype is string and age variable data type in integer. Then we create a scanner class object and take input from the user and print it into a paragraph.

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