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Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
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- Given string stringVal on one line, integer idxBegin on a second line, and integer desiredLen on a third line, output the substring of stringVal starting at position idxBegin and with length desiredLen. End with a newline. Ex: If the input is: Fuzzy bear 3 4 then the output is: zy b Note: Using a pre-defined string function, the solution can be just one line of code. #include <iostream>#include <string>using namespace std; int main() { string stringVal; int idxBegin; int desiredLen; getline(cin, stringVal); cin >> idxBegin; cin >> desiredLen; /* Your code goes here */ return 0;}Task 2: Implement the function Searchingstrings that allow to search a sub-string in a given string and display the: First occurrence, Last occurrence, First occurrence from a given index and Last occurrence from a given index. You can use the following String methods: string. IndexOf(searchvalue, start) return the position of the first occurrence of specified character(s) in a string. string.lastIndexOf(searchvalue, start) return the position of the last occurrence of specified character(s) in a string. You can use the following string to test your solution: var letters = "abcdefghijklmnopqrstuvwxyzabcdefghijklm"; Write the code in a separate.js and separate.html file.In Python, Ask the user to enter a sentence,e.g., Computer Science is awesom. Pass the sentence to a function str2words() and convert the string/sentence into words; place individual words,e.g., 'Computer', 'Science', etc. into a list and return the list to main program. In addition, the individual words should not contain any whitespaces appended to the end of the word such as 'Science'. Do not use any built-in functions to convert a string to words.
- C++ Need help with part 8 This is what i have so far #include <iostream>#include <string> using namespace std; int GetNumOfNonWSCharacters(const string text); int GetNumOfWords(const string text); int FindText(string text, string sample_text); string ReplaceExclamation(string text);string ShortenSpace(string text); char PrintMenu(string sample_text){ char option;cout << "\nMENU"<<endl;cout << "c - Number of non-whitespace characters"<<endl;cout << "w - Number of words"<<endl;cout << "f - Find text"<<endl;cout << "r - Replace all !'s"<<endl;cout << "s - Shorten spaces"<<endl;cout << "q - Quit"<<endl; cout<<endl;cout << "Choose an option:"<<endl;cin >> option; if(option == 'c'){ int nonWSCharacters = GetNumOfNonWSCharacters(sample_text); cout << "Number of non-whitespace characters: "<<nonWSCharacters<<endl; }else if(option == 'w'){ int numOfWords =…capCount.py make a program called capCount.py that has a function that takes in a string and prints the number of capital letters in the first line, then prints the sum of their indices in the second line. The string "hEllo, World" would should look like this: 28Assuming a scanner variable has been initialized. To read an entire line of input into a string we write Group of answer choices scnr.read() scnr.next() scnr.nextLine() scnr.remove()
- Read the string variables visitedListName, place1, place2, and place3 from input, assuming that the list's name contains multiple words and each place visited is a single word. The first input line contains the list's name and the second input line contains the places visited. Ex: If the input is: Countries I've visited Qatar Zambia Malta then the output is: Countries I've visited: Qatar Zambia Malta #include <iostream> #include <string> using namespace std; int main() { string visitedListName; string place1; string place2; string place3; /* Your code goes here */ cout << visitedListName << ":" << endl; cout << place1 << endl; cout << place2 << endl; cout << place3 << endl; return 0; }using System; class Program { publicstaticvoid Main(string[] args) { int number = 1000000; while (number >= 1) { Console.WriteLine(number); number = number / 2; { Console.WriteLine(number); if(number==3){ Console.WriteLine("I found 3!"); } } } } } This code is written in C# and it starts with 1,000,000 and it divides it in half until the last number is 0. Something went wrong with the program and it prints the same number twice. how can that be fixed so it only prints out the numbers once instead of duplicating them before moving on the next? sorry if that doesn't make much sense!DNA sequences are strings made of combinations of four letters: A, C, G, and T. A substring refers to a string that is a continuous segment of a larger string; in the context of DNA, this would be a fragment of our DNA sequence. Write a program that asks the user for two input strings: a complete DNA sequence a DNA fragment whose occurrence is to be found in our complete DNA sequence. The program must display the number of matches as the output. Make sure to validate that your sequence is a DNA sequence -- i.e., that it contains no letters aside from A, C, G, and T.
- In the following program skeleton, replace the < insert code here> line with theappropriate code. The resulting program should display the initial list of songs,prompt the user for a string of text to be replaced and then prompt for new text toreplace it. After making the replacement, it should display the updated list of songs.import java.util.Scanner;public class UpdateSongs{public static void main ( String [] args){Scanner stdIn = new Scanner(System.in);String songs =“ 1. Welcome to Your Life – Grouplove\n” +“ 2. Sedona – Houndmouth\n” +“3. Imagine – John Lennon\n” +“4. Bohemian Rhapsody –Queen\n”;String oldText, newText;< insert code here>}}Sample Session:1. Welcome to Your Life – Grouplove”2. Sedona – Houndmouth3. Imagine – John Lennon4. Bohemian Rhapsody –QueenEnter text to replace: LennonEnter new text: Dean1. Welcome to Your Life – Grouplove”2. Sedona – Houndmouth3. Imagine – John Dean4. Bohemian Rhapsody –QueenA string is passed as argument to a function named hS, the function also returns a string which is the first half of the string given as argument, i.e. from index 0 to l/2 where l is the length of the string. Language: C++In Python Write a program that reads a string from the user containing a date in the form mm/dd/yyy. it should print the date in the format March 12, 2018.