Consider the following statements: struct nametype{string first; string last; }; struct coursetype{string name; int callnum; int credits; char grade; }; struct studenttype{nametype name; double gpa; coursetype course; }; studenttype student; studenttype classlist[100]; coursetype course; nametype name; mark the following statements as valid or invalid. if a statement is invalid, explain why. a.) student. course. callnum = "csc230"; b.) cin > > student. name; c.) classlist[0] = name; d.) classlist[1].gpa = 3.45; e.) name = classlist[15].name; f.) student. name = name; g.) cout

1. .forEach( )

// displayNames is the array to hold the name of the animal

const displayNames = [];

// forEach method is called on zooAnimals array. Inside the forEach method

// a String variable temp is declared to hold the name and scientific name of

// the animal in a specified format. Then the string is push into the array.

zooAnimals.forEach(function(element){

   var temp = "Name: " + element.animal_name + ", " + "Scientific: " + element.scientific_name

   displayNames.push(temp)

})

// the array displayNames is log to the console

console.log(displayNames);

2. .map( )

// The map method return an array and is assigned to lowCaseAnimalNames

// Arrow function is use to perform the mapping. It map each element animal

// name to lower case during each iteration in the array

const lowCaseAnimalNames = zooAnimals.map(element => element.animal_name.toLowerCase());

// the array lowCaseAnimalNames is log to the console

console.log(lowCaseAnimalNames);

3. .filter( )

// The filter method of an array return an array. So, it is assign to

// lowPopulationAnimals. The Arrow function (=>) is used to return only object

// of animals with population less than 5

const lowPopulationAnimals = zooAnimals.filter(element => element.population

// log the population of animals less than 5 to the console

console.log(lowPopulationAnimals);

4. .reduce( )

// The reduce method of an array also return a single number after operation

// The reduce method has two arguments (accumulator and currentValue)

// The accumulator hold the value of our initial sum which is 0. The

// currentValue represent the current element been handled in the loop

const populationTotal = zooAnimals.reduce((accumulator, currentValue) => accumulator + currentValue.population, 0);

// log the total population of animal in the zoo

console.log(populationTotal);

Explanation:

CR

Step-by-step explanation:

Thinking process:

This is a question of vectors.

There are a few things to remember about vectors:

A point AB is denoted by the notation AB, starting from the point of origin to the end point.

In the answers, CR satisfies the question

AC is the opposite, so it is rejected as the direction is not the same as the arrow.

Similarly, RC is rejected

AR is the point somewhere on the line not the origin.

This leaves us with CR as the correct answer.

import java.util.Scanner;

public class ContactInformation

{

public static String GetPhoneNumber(String[] nameVec, String[] phoneNumberVec, String contactName, int arraySize)  

{  

for(int i=0;i

{

if(nameVec[i].equals(contactName))  

return phoneNumberVec[i];

}  

return "Contact doesn't exists!";

}

public static void main(String[] args)

{

int records;

Scanner sc = new Scanner(System.in);

System.out.print("Enter the size of contact List :");

records=sc.nextInt();

String[] contactNameList=new String[records];

String[] phoneNumberList=new String[records];

String contactName;

System.out.println("Enter the contact name and phone number :");

for(int i=0;i

{  

contactNameList[i]=sc.next();  

phoneNumberList[i]=sc.next();  

}  

System.out.println("Enter the name of the contact to be searched :");  

contactName=sc.next();

System.out.println(GetPhoneNumber(contactNameList,phoneNumberList,contactName,records));  

}  

}

Explanation:

In the following the function defined above for getting the contact

number on the basis of contact number provided we are checking the contact name list if we are able to find the contact name and if we did we return the contact number on the same index from the contact number list

which we found in the contact name list.

include

using namespace std;

 

class Month

{

public:

 Month (char firstLetter, char secondLetter, char thirdLetter);

 

 Month (int monthNum);

.

 

 Month();

 void outputMonth_num();

 

 

 void outputMonthLetters();

private:

 int month;

};

 

 

int main ()

{

 //

 // Variable declarations

 //

 int monthNum;

 char firstLetter, secondLetter, thirdLetter;    

 char testAgain;              

 

 do {

 

   cout

   cout

   Month defaultMonth;

   defaultMonth.outputMonth_num();

   defaultMonth.outputMonthLetters();

 

   //

   // Construct a month using the constructor with one integer argument

   //

   cout

   cout

   cout

   cin >> monthNum;

 

   Month testMonth1(monthNum);

   testMonth1.outputMonth_num();

   testMonth1.outputMonthLetters();

 

   //

   // Construct a month using the constructor with three letters as arguments

   //

   cout

   cout

   cout

   cin >> firstLetter >> secondLetter >> thirdLetter;

   cout

 

   Month testMonth2(firstLetter, secondLetter, thirdLetter);

   testMonth2.outputMonth_num();

   testMonth2.outputMonthLetters();

 

   //

   // See if user wants to try another month

   //

   cout

   cout

   cin >> testAgain;

 }

 while (testAgain == 'y' || testAgain == 'Y');

 

 return 0;

}

 

 

Month::Month(char firstLetter, char secondLetter, char thirdLetter)

{

if ((firstLetter == 'j')&&(secondLetter == 'a')&&(thirdLetter == 'n'))

  outputMonth_num = 1;

if ((firstLetter == 'f')&&(secondLetter == 'e')&&(thirdLetter == 'b'))

  outputMonth_num = 2;

if ((firstLetter == 'm')&&(secondLetter == 'a')&&(thirdLetter == 'r'))

  outputMonth_num = 3;

if ((firstLetter = 'a')&&(secondLetter == 'p')&&(thirdLetter == 'r'))

  outputMonth_num = 4;

if ((firstLetter == 'm')&&(secondLetter == 'a')&&(thirdLetter == 'y'))

  outputMonth_num = 5;

if ((firstLetter == 'j')&&(secondLetter == 'u')&&(thirdLetter == 'n'))

  outputMonth_num = 6;

if ((firstLetter == 'j')&&(secondLetter == 'u')&&(.thirdLetter == 'l'))

  outputMonth_num = 7;

if ((firstLetter == 'a')&&(secondLetter == 'u')&&(thirdLetter == 'g'))

  outputMonth_num = 8;

if ((firstLetter == 's')&&(secondLetter == 'e')&&(thirdLetter == 'p'))

  outputMonth_num = 9;

if ((firstLetter == 'o')&&(secondLetter == 'c')&&(thirdLetter == 't'))

  outputMonth_num = 10;

if ((firstLetter == 'n')&&(secondLetter == 'o')&&(thirdLetter == 'v'))

 outputMonth_num = 11;

if ((firstLetter == 'd')&&(secondLetter == 'e')&&(thirdLetter == 'c'))

 outputMonth_num = 12;

}

 

Month::inputMonthByNumber

{

if (Month_num > 12 && Month_num

cout

}

 

void Month::outputMonth_num()

{

 if (month >= 1 && month

   cout >

 else

   cout

}

 

void Month::outputMonthLetters()

{

 switch (month)

   {

   case 1:

     cout

     break;

   case 2:

     cout

     break;

   case 3:

     cout

     break;

   case 4:

     cout

     break;

   case 5:

     cout

     break;

   case 6:

     cout

     break;

   case 7:

     cout

     break;

   case 8:

     cout

     break;

   case 9:  

     cout

     break;

   case 10:

     cout

     break;

   case 11:

     cout

     break;

   case 12:

     cout

     break;

   default:

     cout

   }

}

public class Registration {

   private String fname;

   private String lname;

   private int noCredits;

   private double additionalFee;

   public Registration(String fname, String lname, int noCredits, double additionalFee) {

       this.fname = fname;

       this.lname = lname;

       this.noCredits = noCredits;

       this.additionalFee = additionalFee;

   }

   public String getFname() {

       return fname;

   }

   public void setFname(String fname) {

       this.fname = fname;

   }

   public String getLname() {

       return lname;

   }

   public void setLname(String lname) {

       this.lname = lname;

   }

   public int getNoCredits() {

       return noCredits;

   }

   public void setNoCredits(int noCredits) {

       this.noCredits = noCredits;

   }

   public double getAdditionalFee() {

       return additionalFee;

   }

   public void setAdditionalFee(double additionalFee) {

       this.additionalFee = additionalFee;

   }

   public void showBill(){

       System.out.println("The bill for "+fname+ " "+lname+ " is "+(70*noCredits+additionalFee));

   }

}

THE CLASS WITH MAIN METHOD

public class RegistrationTest {

   public static void main(String[] args) {

       Registration student1 = new Registration("John","James", 10,

               5);

       Registration student2 = new Registration("Peter","David", 9,

               13);

       System.out.println("Initial bill for the two students: ");

       student1.showBill();

       student2.showBill();

       int newCreditStudent1 = student1.getNoCredits()+3;

       int newCreditStudent2 = student2.getNoCredits()-3;

       student1.setNoCredits(newCreditStudent1);

       student2.setNoCredits(newCreditStudent2);

       System.out.println("Bill for the two students after adjustments of credits:");

       student1.showBill();

       student2.showBill();

   }

}

Explanation:

Two Java classes are created Registration and RegistrationTest The fields and all methods (getters, setters, constructor) as well as a custom method showBill() as created in the Registration class as required by the questionIn the registrationTest, two objects of the class are created and initialized student1 and student2.The method showBill is called and prints their initial bill.Then adjustments are carried out on the credit units using getCredit ()and setCredit()The new Bill is then printed

See explaination

Explanation:

Given a partial grammar which represents the specification for C++ style variable declaration. In this range a - z indicates terminals that represents the variable names.

'S' is the start symbol of the

non-terminal.

Hence, given,

S= TV

V= CX

Please kindly refer to attachment for further instructions and complete step by step solution.

The answer is "In the given pseudo-code there are three errors".

Explanation:

The description of the errors can be defined as follows:

The first error in this code is that the variable doesn't initialize any value with a variable, which is equal to false. The second error is it does not return any string value. At the last, if the conditional statement doesn't work properly because in this block if the name is found, it doesn't print any error message.

The correct answer is: they name their children with saints' names or names related to the Virgin Mary.

Explanation:

The text explains some Spanish naming traditions used not only in Spain but also in Latin America. The question asked is "Based on the text, how can some Hispanics use religion in the use of names?" and the answer is that they name their children with saints' names or names related to the Virgin Mary because it is the only part of the text that is related to religion, since the other naming traditions are more related to family members.

CR –> is the name of the ray

They can use religion in the use of names because they will feel blessed and if the child has no parents alive