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Tasya [4]
3 years ago
14

Which of the following are valid variable names? Select 2 options.

Computers and Technology
1 answer:
Zina [86]3 years ago
3 0

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The correct options to this question are C and D:

  • Fourth_number
  • Num4

Because these are the correct and valid variable names.

Other options are not correct because these variables names either start with a number or contains special character such as $ sign.

The invalid variables are A, B, and E while the valid variable declare are options C and D.

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Write a program that replaces words in a sentence. The input begins with an integer indicating the number of word replacement pa
kramer

Answer: provided in the explanation segment

Explanation:

This is the code to run the program:

CODE:  

//Input: 3 automobile car manufacturer maker children kids

  //15 The automobile manufacturer recommends car seats for children if the automobile doesn't already have one.

  import java.util.Scanner;

  public class LabProgram{

  public static int findWordInWordList(String[] wordList, String wordToFind, int numInList) {

          for (int i = 0; i < numInList; i++) {

              if (wordList[i].equals(wordToFind)) {

                  return i;

              }

          }

          return -1;

      }

      public static void main(String[] args) {

          Scanner scan = new Scanner(System.in);

          String[] original_String = new String[20];

              String[] modified_String = new String[20];

          int numInList = scan.nextInt();

          for (int i = 0; i < numInList; i++) {

              original_String[i] = scan.next();

              modified_String[i] = scan.next();

          }

          int num_Of_Words = scan.nextInt();

          String[] words_To_Replace = new String[num_Of_Words];

          for (int i = 0; i < num_Of_Words; i++) {

              words_To_Replace[i] = scan.next();

          }

          int indx;

          for (int i = 0; i < num_Of_Words; i++) {

              indx = findWordInWordList(original_String, words_To_Replace[i], numInList);

              if (indx != -1)

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          for (int i = 0; i < num_Of_Words; i++)

              System.out.print(words_To_Replace[i] + " ");

          System.out.println();

      scan.close();

      }

  }

cheers i hope this helps!!!!1

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