1. the program must provide following functions to extract some statistics. note that the data_list parameter specified in these functions may be the same for all functions or different for different functions—that is your choice. a skeleton file is provided on mirmir. a) open_file()prompts the user to enter a year number for the data file. the program will check whether the year is between 1990 and 2015 (both inclusive). if year number is valid, the program will try to open data file with file name ‘year. txt’, where is the year. appropriate error message should be shown if the data file cannot be opened or if the year number is invalid. this function will loop until it receives proper input and successfully opens the file. it returns a file pointer and year. i. hint: use string concatenation to construct the file name b) read_file(fp)has one parameter, a file pointer read. this function returns a list of your choosing containing data you need for other parts of this project. c) find_average(data_list) takes a list of data (of some organization of your choosing) and returns the average salary. the function does not print anything. hints: i. this is not the average of the last column of data. it is not mathematically valid to find an average by finding the average of averages—for example, in this case there are many more in the lowest category than in the highest category. ii. how many wage earners are considered in finding the average (denominator)

Following are the program in the Java Programming Language.

//import package scanner class

import java.util.Scanner;

//define class

public class telephone {

//define main method

public static void main(String[] args) {

//set object of the scanner class

Scanner sc = new Scanner(System.in);

//print message

System.out.println("Enter tele-phone no. using this format: (xxx)xxx-: ");

//get input from the user

String phn = sc.next();

//check length of phone number is equal to 13

if(phn.length() == 13) {

//check phone no. containing parentheses

if(phn.charAt(0) == '(' && phn.charAt(4)==')' && phn.charAt(8) == '-') {

//initializing the values

String num1 = phn.substring(1,4);

String num2 = phn.substring(5,8);

String num3 = phn.substring(9);

//check the following input is numeric or not

if(num1.matches("[0-9]+") && num2.matches("[0-9]+")&& num3.matches("[0-9]+")) {

//then, print valid message

System.out.println("Given phone number is valid");

}

//otherwise

else {

//print invalid message

System.out.println("Given phone number is invalid");

}

}

//otherwise

else {

//print invalid message

System.out.println("Given phone number is invalid");

}

}

//otherwise

else {

//print invalid message

System.out.println("Given phone number is invalid");

}

}

}

Explanation:

Following are the desciption of the program

Declared a class telephoneRead a input phone number in phn variable of string type.

Check the following condition of phone number

 if "phn"=="13" then it check for the parenthesis and number is valid otherwise phn number is invalid .

Program written in Java is as follows

See comments for explanations

import java.util.Scanner;

public class CheckRange {

public static void main (String [] args)

{

// This line allows the program accept user input

Scanner input = new Scanner(System.in);

//This line declares variable for user input

int num;

//This line prompts user for input

System.out.print("Number: ");

//This line gets user input

num = input.nextInt();

/* The following if statement checks if the user input is greater than 5 and less than 20 */

if (num > 5 && num

{

/* This line is executed if the above condition is true */

System.out.print(num+" is greater than 5 and less than 20");

}

else

{

/*If the condition is not true, this line is executed*/

System.out.print(num+" is not within specified range");

}

// The if condition ends here

}

}

See explaination for code

Explanation:

# Take user input

opening_balance = float(input('Enter the opening cash balance: '))

closing_balance = float(input('Enter the closing cash balance: '))

filename = input('Enter the file name: ')

# Open file to read

fileread = open(filename, 'r')

# Set file_balance to opening balance

file_balance = opening_balance

# Iterate over file

# Split line to get data from it

for line in fileread.readlines():

data = line.rstrip().split()

# Add payment is R means Received else subtract

if data[2] == "R":

file_balance += float(data[1])

else:

file_balance -= float(data[1])

# Check if equal and print message accordingly

if file_balance == closing_balance:

print('The closing balance is correct')

else:

print('The closing balance didn\'t match.\nAccording to the file, it should be', file_balance)

Please kindly check attachment for screenshot and output.

The program to this question an be given as:

Program:

char = input("Enter any alphabet: ") #input alphabet from user in char variable.

if char in ('a', 'e', 'i', 'o', 'u'): #check condition in if block.

print("vowel.")  #print value.

else:   #else block

print("consonant.")  #print value.

Output:

Enter any alphabet: r

consonant.

Explanation:

In the above python program firstly we define a variable that is "char" it is used to take input from the user. for user input, we use the input function in the python.

Then we define the conditional statement in this statement in if block we pass alphabets that is 'a', 'e', 'i', 'o', 'u' and check if user input alphabet and this alphabet match it will print vowel. otherwise, it will print consonant.  

Not evil because of the program

The solution
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  public static int  circularLeftRotation(int num) { int unitDigit = num%10;  num = num/10; int temp = 1; while(num/temp != 0)  temp*=10; return num+unitDigit*temp;  }
public boolean isPrime(int num) {       if ( num public int getDigitsCount(int number) {
int length = String.valueOf(number).length();    return length; }
public boolean isCircularPrime(int number) {               int temp = number;    while(isPrime(temp) && ((temp = circularLeftRotation(temp)) != number)); if(number == temp && isPrime(number)) { return true; } else return false; }                            public static void main(String[] args) {
System.out.println(new CircularPrime().getDigitsCount(113)); System.out.println(new CircularPrime().isPrime(113)); System.out.println(new CircularPrime().isCircularPrime(113));
}
}