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question:Design a Java program that reads multiple strings from the user, calculates and stores the length of each string, sorts them in descending order based on their length, and prints the top 3 longest strings along with their lengths. If less than 3 strings are provided, print all the strings and their lengths in descending order.
answer:Here's a Java program to solve the problem as described:```javaimport java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.Scanner;class StringLengthInfo { String str; int length; StringLengthInfo(String str, int length) { this.str = str; this.length = length; }}class LengthComparator implements Comparator<StringLengthInfo> { public int compare(StringLengthInfo s1, StringLengthInfo s2) { return s2.length - s1.length; }}public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); ArrayList<StringLengthInfo> stringLengths = new ArrayList<StringLengthInfo>(); System.out.println("Enter multiple strings (Type 'done' to finish input): "); String input = ""; while(!input.equals("done")) { input = sc.nextLine(); if (!input.equals("done")) { stringLengths.add(new StringLengthInfo(input, input.length())); } } Collections.sort(stringLengths, new LengthComparator()); int count = Math.min(stringLengths.size(), 3); System.out.println("nTop " + count + " longest strings:" + (count < 3 ? " (All strings provided)" : "")); for(int i = 0; i < count; i++) { System.out.println((i+1) + ". " + stringLengths.get(i).str + " (Length: " + stringLengths.get(i).length + ")"); } }}```This Java code will read multiple strings from the user, calculate and store the length of each string, sort them in descending order based on their length using a custom comparator, and print the top 3 longest strings along with their lengths as specified. If less than 3 strings are provided, the code will print all the strings and their lengths in descending order as described.
question:Show me how to write this in Go:import boto3def move_data(source_bucket, target_bucket, file_name): s3 = boto3.resource('s3') copy_source = { 'Bucket': source_bucket, 'Key': file_name } try: s3.Bucket(target_bucket).copy(copy_source, file_name) print(f"{file_name} has been copied to {target_bucket}") s3.Object(source_bucket, file_name).delete() print(f"{file_name} has been deleted from {source_bucket}") except Exception as e: print(e) # 使用函數move_data('source-bucket-name', 'target-bucket-name', 'file-to-move')Could you also break down what's happening in the Go version?
answer:Here is the Go version:```gopackage mainimport ( "fmt" "github.com/aws/aws-sdk-go/aws" "github.com/aws/aws-sdk-go/aws/session" "github.com/aws/aws-sdk-go/service/s3")func moveData(sourceBucket, targetBucket, fileName string) { sess := session.Must(session.NewSession(&aws.Config{ Region: aws.String("us-west-2"), })) svc := s3.New(sess) _, err := svc.CopyObject(&s3.CopyObjectInput{ Bucket: aws.String(targetBucket), CopySource: aws.String(sourceBucket + "/" + fileName), Key: aws.String(fileName), }) if err != nil { fmt.Println("Error while copying the object", err) return } _, err = svc.DeleteObject(&s3.DeleteObjectInput{ Bucket: aws.String(sourceBucket), Key: aws.String(fileName), }) if err != nil { fmt.Println("Error while deleting the object:", err) return } fmt.Println(fileName, "has been moved from", sourceBucket, "to", targetBucket)}func main() { moveData("source-bucket-name", "target-bucket-name", "file-to-move")}```Here's what the Go version does:1. `moveData()` function accepts `sourceBucket`, `targetBucket` and `fileName` as arguments. 2. A session with the AWS SDK is established using `session.NewSession()`. This allows Go application to make service API calls. The AWS Region us-west-2 is specified to the session configuration. 3. AWS S3 service client is created using `s3.New()`, which gives us the ability to access methods to perform operations on S3.4. The `CopyObject()` method is used to copy an object (file in this case) from the source bucket to the destination bucket. If there's an error, it's printed and the program returns.5. The `DeleteObject()` method is used to delete the file from the source bucket after it has successfully copied. If there's an error, it's printed and the program returns. 6. If the file is successfully copied and then deleted, a success message is printed. 7. In `main()`, we call `moveData()` with bucket names and the file name.
question:Craft an HTML code segment that generates a pair of check boxes accompanied by their respective labels, one indicating affirmative with "yes" and the other denoting negation with "no".
answer:```html<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Checkboxes Example</title></head><body> <form> <input type="checkbox" id="yes" name="yes"> <label for="yes">Yes</label><br> <input type="checkbox" id="no" name="no"> <label for="no">No</label><br> </form></body></html>```
question:translate this code to c#>>> unique_odd_prime_sum_elements([15, 33, 1422, 1, 15])[1, 33]>>> unique_odd_prime_sum_elements([152, 323, 1422, 10])[323]
answer:Here is the code you are looking for in C#```C#using System;using System.Collections.Generic;using System.Linq;public class Program{ public static void Main() { var list = new List<int> {15, 33, 1422, 1, 15}; var list2 = new List<int> {152, 323, 1422, 10}; Console.WriteLine(string.Join(", ", UniqueOddPrimeSumElements(list))); Console.WriteLine(string.Join(", ", UniqueOddPrimeSumElements(list2))); } public static List<int> UniqueOddPrimeSumElements(IEnumerable<int> list) { return list.Where(x => x % 2 != 0 && IsPrimeSum(x)).Distinct().ToList(); } public static bool IsPrimeSum(int number) { if (number % 2 == 0) return false; for (var i = 2; i * i <= number; i++) if (number % i == 0) return false; return number > 1; }}```In this program, we first declare `list` and `list2` as sample inputs. Then, we use the `UniqueOddPrimeSumElements` method to remove any numbers that aren't odd or the sum of two primes from these lists. We print the output as a comma-separated string. The `UniqueOddPrimeSumElements` method filters the list to ensure each element is odd and the sum of two prime numbers. The `IsPrimeSum` method checks if a number is the sum of two prime numbers. You may want to further define this method to calculate the sum of two prime numbers that could be composite into the given number as per your need because currently, it checks if the number itself is a prime number.
question:Compare the two given strings, determine the longer one, and calculate the difference in their lengths.let str1 = 'hello';let str2 = 'world';
answer:You can solve this problem by using JavaScript:```javascriptlet str1 = 'hello';let str2 = 'world';let lengthDiff = Math.abs(str1.length - str2.length)if(str1.length > str2.length){ console.log(`{str1} is longer by {lengthDiff}`);} else if(str1.length < str2.length){ console.log(`{str2} is longer by {lengthDiff}`);} else{ console.log(`Both strings are of the same length.`);}```This program first calculates the absolute difference in lengths between the two strings. It then compares the lengths of the strings. If str1 is longer than str2, it logs out the message that str1 is longer by the calculated length difference. If str2 is longer, it logs out a message that str2 is longer by the difference. If both strings have the same length, it logs out that both strings have the same length.
question:Construct a code snippet that parses a single sentence into individual words. Then, implement an algorithm for sorting these words according to their ASCII values. This must be done without the assistance of any in-built Python sorting functions, such as sort() or sorted().sentence = "This is a sample sentence"
answer:Here's a Python code snippet that does that using bubble sort:```pythonsentence = "This is a sample sentence"def bubble_sort(words_list): n = len(words_list) for i in range(n): for j in range(0, n - i - 1): if words_list[j] > words_list[j + 1] : words_list[j], words_list[j + 1] = words_list[j + 1], words_list[j] return words_listwords = sentence.split()sorted_words = bubble_sort(words)print(sorted_words)```This first splits the sentence into words using the split() function, which splits on whitespace by default. Then it applies bubble sort to sort the list of words. The resulting list of words is in ascending order by ASCII value. This approach takes advantage of the fact that Python's comparison operators work with strings in lexicographic order using their ASCII values. In other words, 'A' is less than 'B', 'B' is less than 'C', and so on.Please note, Bubble sort is not the most efficient algorithm for this purpose, but it's straightforward and doesn’t need an external library. You might want to consider using more efficient sorting algorithms, like Quicksort or Mergesort, for larger data sets.