Write a function def countWords(stri ng) that returns a count of all words in the string string. Words are separated by spac For example, countWords ("Mary had a little lamb") should return 5.

Answer:

False

Explanation:

The term asymptotic means approaching a value or curve arbitrarily closely

Answer: The DATE datatype give us the particular date whereas TIMESTAMP gives us the date as well as the time as the particular moment.

Explanation:

DATE datatype gives us the date in the format yyyy-mm-dd. The timestamp format is yyyy-mm-dd hh:mm:ss. time stamp are of two types :

timestamp with time zone and timestamp without time zone.

Date is the date on that particular day whereas the timestamp is the date along with the specific time when the query is executed.

Answer:

b. Associativity

Explanation:

Associativity specifies the order in which operators are processed vis a vis operands/values in an expression. For example: Consider the expression: a + b + c. Here a + b is evaluated first before adding the result with c as the '+' operator is left associative. The default associativity can also be overridden by the use of parentheses. For example a + (b + c) . In this case b+c will be evaluated first.

C++ program - Insertion sort

#include <bits/stdc++.h>  

using namespace std;  

/* Defining function for sorting numbers*/

void insertionSort(int array[], int n)  

{  

   int i, k, a;  

  for(i=1;i<n;i++)

           {

              k=array[i];

               a=i-1;

            while(a>=0 && array[a] > k) // moving elements of array[0 to i-1] are greater than k, to one position //

                      {

                       array[a+1] = array[a];

                        a =a-1;

                      }

              array[a+1] =k;

             }  

}              

/* Driver function */

int main()  

{  

   int array[] = { 12,56,76,43,21};   //input integers

   int n = sizeof(array) / sizeof(array[0]);   //finding size of array

   insertionSort(array, n);   //Calling function

    for (int i = 0; i < n; i++)   //printing sorted array

        cout << array[i] << " ";  

    cout << endl;  

    return 0;  

}  

Answer:

*jspService()

Explanation:

These are the steps in JSP life cycle.

1. Conversion JSP page to Servlet .

2.Compilation of JSP page(test.java)

3.Class is loaded (test.java to test.class)

4.Instantiation (Object is created)

5.Initialization (jspInit() method is only called once at the time of servlet     generation )

6.Request processing(_jspService() method is used for serving requests by JSP)

7.JSP Cleanup (jspDestroy() method is used for removing JSP from use)

There is no *jspService() method in the JSP life cycle.

Answer:

read-only properties.

Explanation:

Only the read only properties can view but cannot change the data.The user don't have access to the no access properties, full-access properties can read and modify the data.The write only properties can only modify the data.So to only view the data the data should have read only properties.

Answer:

before executing a code using javascript hoisting we can move any variable declaration to the top of the scope in a code.

Explanation:

It is to be remembered that hoisting works with declaration not with initialization.

example:

//initializing a variable s

var s = 2;

t = 4

elem.innerHTML = s + " " + t;           // Display s and t values

// initializing a variable for hoisting

var t;

Answer:

Table buffers are tools used to avoid the process of accessing a database in servers.

Answer: In global alignment an end to end alignment is made in the entire sequence however in local alignment a local region is found wit the highest level of similarity in their sequences.

Explanation:

Global alignment is more suitable for closely related sequences whereas local is suitable for divergent sequences.

global alignment is used for comparing genes base on same functionalities whereas local alignment is used to find sequences in DNA.

EMBOSS needle is a global alignment tool and BLAST is a local alignment tool

Answer:

We can use CREATE command to create tables with columns having descriptive names

Explanation:

Firstly, create a table using CREATE  command in SQL. The syntax is as follows:

CREATE TABLE [table_name]

(

 [col_name] [datatype]),

[col_name] [datatype]),

[col_name] [datatype]),

[col_name] [datatype])

)

Once the table is created, we can insert the data into table using INSERT command. It's syntax is as follows:

INSERT INTO table_name VALUES('', '', '')

if datatype is string, values must be entered within single quotes. If datatype is int, values are entered directly without using  quotes.

Now, you can select the data from  the table using SELECT command. It's syntax is as follows:

SELECT column-list FROM table_name

If you want to filter rows according to conditions, you can use WHERE command.

I have created  sample table and inserted some data into it. Now, I applied some queries on it to select data from the table.

I have written in a text file and attached the same. Please find. Thank you!

1.Students at front rows will have to sit attentive and have to concentrate on the lecture being delivered,thus their knowledge about the lecture is way better than the students at back rows.

2. Front row students are more in line with the teacher and they have much better concepts regarding the lecture delivered and they have more score in exams.

3. Generally the more interested a student is about the lectures being delivered,the more front he/she is in classroom and thus this results in more grades.

Three possible cause-and-effect relationships explaining why students with good grades sit at the front include higher motivation, increased teacher attention, and the third-factor explanation such as self-confidence or socioeconomic status, which could indicate a spurious relationship.

You observe that classmates who get good grades tend to sit toward the front of the classroom, while those who receive poor grades tend to sit toward the back. Three possible cause-and-effect relationships for this nonexperimental observation could include:

It is difficult to determine without further investigation whether the observed correlation indicates a causal relationship or a spurious relationship. Investigating the root causes of this observation would require a more rigorous research design with clear independent and dependent variables, as well as controls to account for potential confounding factors.

Answer:

Disaster recovery is a set of procedure/plans/actions which are put in place to protect an organization which is facing a disaster. In a technological terms, a government organizations facing cyber attack will follow certain counter measures to recover from cyber disaster. Similarly, in school a disaster recovery can be natural calamity or cyber threat at school's database.

To implement disaster recovery at school or work we must aware everyone with proper procedures and mock drills must be conducted so that people can act swiftly when a disaster occurs and speed up disaster recovery.

Answer:

A

Explanation:

B is a print statement.

C is a function invocation

D is a function declaration

A prototype is actually quite close to a declaration. The semi-colon at the end shows that no implementation will follow. Adding parameter names is allowed but would only be helpful for better understanding.

Answer:

C. Bidirectional

Explanation:

If we want to access elements at an any random offset position then we can use random access iterators.They use the functionality 'as relative to the element they point to' like pointers.Random access iterators are Bidirectional iterators that can randomly process elements,pointer types are also random-access iterators.

Final answer:

An application to compute the radius and circumference of a circle requires creating a Main class with methods to input radius, calculate circumference, and area, formatting results to two decimal places using Math.PI.

Explanation:

To create an application that calculates the radius and circumference of a circle, you will need to define methods within your Main class. The getRadius method will prompt the user for input, calcCirc for calculating the circumference using the formula C = 2 * PI * r, and calcArea for calculating the area with A = PI * r * r. You should use the Math.PI constant for PI, and ensure all results are formatted to two decimal places.

Sample code structure in Java:

public class Main {
   public static void main(String[] args) {
       double radius = getRadius(); // prompts user and gets radius
       double circumference = calcCirc(radius);
       double area = calcArea(radius);
       System.out.printf("Radius: %.2f\n", radius);
       System.out.printf("Circumference: %.2f\n", circumference);
       System.out.printf("Area: %.2f\n", area);
   }
   // Helper methods here
}

Ensure that you correctly use double data types for storing the input from the user, as well as the calculated values, since these can include decimal points.

Answer:

Explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

This depends on the company, but some companies will accept poor quality as long as the product works and provides them faster innovation. This will happen especially if a company knows or has an idea that a competitor is working on a similar product.

Another big reason why a company might accept poor quality in order to release a product is money. Sometimes a company does not have the budget to continue the project, therefore they release it usually in Early Access. This allows them to start making some money on the project while they continue to work on it.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

In this exercise, we are analyzing the context in which we have the quality of technological products linked to monetary value, as follows:

We know that some companies are focused on having a worse quality as long as they make a quick profit, as the consumer is not a priority.

When it comes to Price or Quality, many entrepreneurs most of the time have a false perception that the cheaper a product they tend to offer to the consumer, the greater the chances of success.

We must take into account that the option of a lower quality is often linked to the budget that a company may have.

See more about technology at brainly.com/question/9171028

Answer:

import numpy as np#importing numpy module with an alias np.

def c(bitstring_array):# defining function c.

   num_integer=bitstring_array.dot(2**np.arange(bitstring_array.size)[::-1])#bitstring conversion.

   return num_integer#returning integer array.

print("Enter bits")

Bit_l=input().split(" ")#enter space separated bitstring.

for i in range(len(Bit_l)):#iterating over the bitstring.

   Bit_l[i]=int(Bit_l[i])

bitstring_array=np.array(Bit_l)

print(c(bitstring_array))#function call.

Output:

Enter bits

1 1 1 0 0 1

57

Answer: Early

Explanation:

The largest distribution of software cost will be in the early stages of program life cycle. The different phases in the program life cycle are edit time, compile time, link time, distribution time, installation time, load time, and run time. So during early program life cycle we have editing stage which involves correcting the code , debugging earlier codes and addition of features into the code which leads to a large software cost

Answer: True

Explanation:

In shielded twisted pair (STP) we have two wires which are twisted together and they have a shielding layer outside them which helps them to avoid interference from outside noise. STP thus having the advantage with an additional layer of shield covering the two wires together makes them more durable compared to unshielded twisted pair.

Answer:

The correct answer is B. Machine Language.

Explanation:

A programming language is a language that can be used to control the behavior of a machine. It consists of a set of syntactic and semantic rules that define its structure and the meaning of its elements, respectively.

A low level language is one that exposes the programmer to the operations of the machine, without contributing its own constructions. That is, in low level languages it will be possible to do everything the computer is capable of doing, but to achieve this the programmer will have to be intimately familiar with the details of the electronics in which his program runs.

An example of the low level language is the machine language that consists of binary instructions ready to run. The machine language is the one that gives orders to the machine, which are the fundamental operations for its operation. The computer only understands a language known as binary code or machine code, consisting of zeros and ones, which are easy to understand by the hardware of the machine. This language is much faster than high level languages. The disadvantage is that they are quite difficult to handle and use, besides having huge sources codes where finding a fault is almost impossible.

Final answer:

Machine language is the most basic circuitry-level language, written in binary code. High-level programming languages like C provide a more user-friendly alternative for programming.

Explanation:

The program written in machine language is the most basic circuitry-level language. Machine language is directly executed by the central processing unit (CPU) and is composed of binary code, which consists of zeros and ones. This type of programming is considered a low-level language, as opposed to high-level programming languages like Java, BASIC, or C, which require a compiler to convert their instructions into machine code that the CPU can understand and execute.

Answer:

#include <iostream>

using namespace std;

int main()

{

   float celsius;

  cout<<"Enter the temperature in Celsius: ";

  cin>>celsius;

  float Fahrenheit  = 1.8 * celsius + 32;

  cout<<"The temperature in Fahrenheit  is: "<<Fahrenheit<<endl;

}

Explanation:

first include the library iostream in the c++ programming.

Then, create the main function and declare the variable celsius.

cout is used to print the message on the screen.

cin is used to store the user enter value in the variable.

then, apply the formula for calculating the temperature in Fahrenheit

and store the result in the variable.

Finally, print the result.

Answer:

% here x and y is given which we can take as

x = 2:2:10;

y = 2:2:10;

% creating a matrix of the points

point_matrix = [x;y];

%  center point of rotation  which is 2,2 here

x_center_pt = x(2);

y_center_pt = y(2);

% creating a matrix of the center point

center_matrix = repmat([x_center_pt; y_center_pt], 1, length(x));

% rotation matrix with rotation degree which is 45 degree

rot_degree = pi/4;      

Rotate_matrix = [cos(rot_degree) -sin(rot_degree); sin(rot_degree) cos(rot_degree)];

% shifting points  for the center of rotation to be at the origin

new_matrix = point_matrix - center_matrix;  

% appling rotation  

new_matrix1 = Rotate_matrix*new_matrix;          

Explanation:

We start the program by taking vector of the point given to us and create a matrix by adding a scaler to each units with repmat at te center point which is (2,2). Then we find the rotation matrix by taking the roatational degree which is 45 given to us. After that we shift the points to the origin and then apply rotation ans store it in a new matrix called new_matrix1.

Answer:

red

Explanation:

public class CarTest {

public static void main(String[] argvs) {

//below line will create an object of CarTest class Object

CarTest carTest = new CarTest();

//This will call runDemo method

carTest.runDemo();

}

public void runDemo() {

//Below line will create an object of Car class  with color blue and 4 wheel

Car c = new Car("blue", 4);

//Bellow Line will change the color from blue to red, see the logic writteen in chnageColor method definition

changeColor(c, "red");

//Below line will print the color as red

System.out.println(c.getColor());

}

public void changeColor(Car car, String newColor) {

//This line will set the color as passed color in the car object

car.setColor(newColor);

}

}

Answer:

private int[ ] testMethod ( int x )

Explanation:

Before going to the reason first understand the syntax of declare the function.

Syntax:

Access_modifier return_type name (argument_1, argument_2,...);

Access_modifier is used for making the restriction to access the values.

it is public, private and protected.

Return_type:  it is used to define return type of the function.

it can be int, float, double.

In the question:

Option 1:  private array testMethod ( int x )

it is not valid because array is not valid return type.

Option 2: private int[ ] testMethod ( int x )

int[ ]  denotes the integer array. so, the function return the integer array.

Option 3: private double[5] testMethod ( int x )

it is not valid because double[5] is not valid return type. we cannot enter the size of the array.

if we replace double[5] to double[ ], then it valid and the function return double type array.

Option 4: private double testMethod[ ] ( int x )

it return type is double. So, it return the decimal value but not array.

Therefore, the correct option is (b).

Answer:

#include <bits/stdc++.h>

using namespace std;

int main() {

int A[3][3],B[3][3],res[3][3],i,j;

srand(time(0));//for seed.

for(i=0;i<3;i++)

{

   for(j=0;j<3;j++)

{

   int val=rand()%100+1;//generating random values in range 1 to 100.

   int val2=rand()%100+1;

   A[i][j]=val;

   B[i][j]=val2;

}

cout<<endl;

}

for(i=0;i<3;i++)

{

   for(j=0;j<3;j++)

   {

       res[i][j]=0.5*A[i][j]+3*B[i][j];//storing the result in matrix res.

   }

}

cout<<"Matrix A is"<<endl;

for(i=0;i<3;i++)

{

   for(j=0;j<3;j++)

   {

       cout<<A[i][j]<<" ";//printing matrix A..

   }

   cout<<endl;

}

cout<<"Matrix B is"<<endl;

for(i=0;i<3;i++)

{

   for(j=0;j<3;j++)

   {

       cout<<B[i][j]<<" ";//printing matrix B..

   }

   cout<<endl;

}

cout<<"The result is"<<endl;

for(i=0;i<3;i++)

{

   for(j=0;j<3;j++)

   {

       cout<<res[i][j]<<" ";//printing the result..

   }

   cout<<endl;

}

return 0;

}

Output:-

Matrix A is

13 95 83  

88 7 14  

24 22 100  

Matrix B is

11 13 95  

48 35 20  

68 100 18  

The result is

39.5 86.5 326.5  

188 108.5 67  

216 311 104  

Explanation:

I have created 2 matrices A and B and storing random numbers int the matrices A and B.Then after that storing the result in res matrix of type double to store decimal values also.Then printing the res matrix.

Answer:

Yes, the order in which the catch blocks are listed matter in case where multiple exceptions are caught in the same try statement and some of them are related through inheritance.

Explanation:

A try block may be followed by one or mutiple catch blocks. Each catch block should contain a separate exception handler. Thus, if we need to perform different tasks for the occurrence of different exceptions then we need to use java multiple catch blocks.

Every catch block should be ordered from the most particular to the most generic like catch for the NumberFormatException class must come before the catch for the Exception class.

Thus, the order in which the catch blocks are listed matter in case where multiple exceptions are caught in the same try statement and some of them are related through inheritance.

Answer:

#include<iostream>

using namespace std;

int h(int i)

{

if(i==0 ||i==1||i==2)

 return 1;

else

 return(h(i-1)+h(i-2));

}

int main()

{

int n, result;

cout<<"Enter value for n:";

cin>>n;

result = h(n);

cout<<result;

}

Explanation:

The recurrence relation will be h(n)= h(n-1)+h(n-2), unless the recursion will not finish.

Answer:

A. vecList.erase(position)

Explanation:

Assuming vecList is a vector container, the expression vecList.erase(position) deletes all elements from the container.

Assuming vecList is a vector container, the expression vecList.erase(position) deletes all elements from the container. Thus, the correct option for this question is A.

A vector container may be defined as a type of sequence that significantly represents arrays that can change in size. They significantly utilize contiguous storage locations for their elements. This means that their elements can also be accessed using offsets on regular pointers to their elements, and just as efficiently as in arrays.

According to the context of this question, vecList.erase(position) is the tool of the vector container in order to delete all sorts of elements that have been expressed by the vector container.

Therefore, the expression vecList.erase(position) deletes all elements from the container. Thus, the correct option for this question is A.

To learn more about vector containers, refer to the link:

https://brainly.com/question/12949818

#SPJ5

Answer:

single equal sign

Explanation:

The if statement is used for check the condition.

syntax:

if(condition)

{

  statement;

}

let discuss the option one by one for find the answer:

Option a:  greater than sign

this assignment operator '>' is valid. it is used to create the condition like n>0, p>4.

Option b:  double equal sign

this assignment operator '==' is valid. it is used to check the equal condition.

like 2 == 2.

Option c:  single equal sign

this assignment operator '=' is not valid. it is used for assign the value to variable not for checking like a=2, in this 2 assign to a but it not apply the condition.

Option d:  Boolean value

we can provide the Boolean value as well if Boolean is TRUE, if condition true otherwise false.

Therefore, the option c is correct option.