Question

Java Code please read comments and add the code to required lines....LINE 1 to LINE 5

**********************************************************************
* Program Summary: This program demonstrates these basic Java concepts:
* - Creating an array based on user input
* - Accessing and displaying elements of the array
*
* The program should declare an array to hold 10 integers.
* The program should then ask the user for an integer.
* The program should populate the array by assigning the user-input integer
* to the first element of the array, the value of the first element + 100 to
* the second element of the array, the value of the second element + 100 to
* the third element of the array, the value of third element + 100 to
* the fourth element of the array, and so on until all 10 elements of the
* array are populated.
*
* Then the program should display the values of each of the array
* elements onscreen. For example, if the user inputs 4, the output
* should look like this:
*
* Enter an integer and hit Return: 4
* Element at index 0: 4
* Element at index 1: 104
* Element at index 2: 204
* Element at index 3: 304
* Element at index 4: 404
* Element at index 5: 504
* Element at index 6: 604
* Element at index 7: 704
* Element at index 8: 804
* Element at index 9: 904
***********************************************************************/
package prg420week4_codingassignment;

// We need to import the following library if we want to use the
// Scanner class to get user input.
import java.util.Scanner;

public class PRG420Week4_CodingAssignment {

public static void main(String[] args) {
  
// LINE 1. DECLARE AN ARRAY OF INTEGERS
  

// LINE 2. ALLOCATE MEMORY FOR 10 INTEGERS WITHIN THE ARRAY.
  
  
// Create a usable instance of an input device
Scanner myInputScannerInstance = new Scanner(System.in);
  
// We will ask a user to type in an integer. Note that in this practice
// code WE ARE NOT VERIFYING WHETHER THE USER ACTUALLY
// TYPES AN INTEGER OR NOT. In a production program, we would
// need to verify this; for example, by including
// exception handling code. (As-is, a user can type in XYZ
// and that will cause an exception.)
System.out.print("Enter an integer and hit Return: ");
  
// Convert the user input (which comes in as a string even
// though we ask the user for an integer) to an integer
int myFirstArrayElement = Integer.parseInt(myInputScannerInstance.next());
  
// LINE 3. INITIALIZE THE FIRST ARRAY ELEMENT WITH THE CONVERTED INTEGER myFirstArrayElement

  
// LINE 4. INITIALIZE THE SECOND THROUGH THE TENTH ELEMENTS BY ADDING 100 TO THE EACH PRECEDING VALUE.
// EXAMPLE: THE VALUE OF THE SECOND ELEMENT IS THE VALUE OF THE FIRST PLUS 100;
// THE VALUE OF THE THIRD ELEMENT IS THE VALUE OF THE SECOND PLUS 100; AND SO ON.

  
// LINE 5. DISPLAY THE VALUES OF EACH ELEMENT OF THE ARRAY IN ASCENDING ORDER BASED ON THE MODEL IN THE TOP-OF-CODE COMMENTS.

}
}

Answer 1

import java.util.Scanner;

public class PRG420Week4_CodingAssignment {

   public static void main(String[] args) {

       // LINE 1. DECLARE AN ARRAY OF INTEGERS
       int arr[];

       // LINE 2. ALLOCATE MEMORY FOR 10 INTEGERS WITHIN THE ARRAY.
       arr = new int[10];

       // Create a usable instance of an input device
       Scanner myInputScannerInstance = new Scanner(System.in);

       // We will ask a user to type in an integer. Note that in this practice
       // code WE ARE NOT VERIFYING WHETHER THE USER ACTUALLY
       // TYPES AN INTEGER OR NOT. In a production program, we would
       // need to verify this; for example, by including
       // exception handling code. (As-is, a user can type in XYZ
       // and that will cause an exception.)
       System.out.print("Enter an integer and hit Return: ");

       // Convert the user input (which comes in as a string even
       // though we ask the user for an integer) to an integer
       int myFirstArrayElement = Integer.parseInt(myInputScannerInstance.next());

       // LINE 3. INITIALIZE THE FIRST ARRAY ELEMENT WITH THE CONVERTED INTEGER
       // myFirstArrayElement
       arr[0] = myFirstArrayElement;

       // LINE 4. INITIALIZE THE SECOND THROUGH THE TENTH ELEMENTS BY ADDING
       // 100 TO THE EACH PRECEDING VALUE.
       // EXAMPLE: THE VALUE OF THE SECOND ELEMENT IS THE VALUE OF THE FIRST
       // PLUS 100;
       // THE VALUE OF THE THIRD ELEMENT IS THE VALUE OF THE SECOND PLUS 100;
       // AND SO ON.
       for (int i = 1; i < 10; i++)
           arr[i] = arr[i - 1] + 100;

       // LINE 5. DISPLAY THE VALUES OF EACH ELEMENT OF THE ARRAY IN ASCENDING
       // ORDER BASED ON THE MODEL IN THE TOP-OF-CODE COMMENTS.
       for (int i = 0; i < 10; i++)
           System.out.print(arr[i] + " ");
   }
}