Question

please write the java code so it can run on jGRASP Thanks!
1 /**
 2  * PassArray
 3  * @Sherri Vaseashta
 4  * @Version 1
 5  * @see
 6  */
 7 import java.util.Scanner;
 8
 9 /**

10. 10     This program demonstrates passing an array
    

11. 11     as an argument to a method
    

12 */13

14 public class PassArray
15 {
16    public static void main(String[] args)
17    {
18

19. 19        final int ARRAY_SIZE = 4;  //Size of the array
    

20. 20        // Create an array.
    

21. 21        int[] numbers = new int[ARRAY_SIZE];
    

22

23. 23        // Pass the array to the getValues method
    

24. 24        getValues(numbers);
    

25
26       System.out.println("Here are the numbers that you
entered:");
27
28
29
30
31
32
33
34
35
36    /**

37. 37        The getValues method accepts a reference
    

38. 38        to an array as its argument. The user is
    

39. 39        asked to enter a value for each element.
    

40. 40        @param array A reference to the array.
    

41    */
42
43    private static void getValues(int[] array)
44    {

45. 45        //Create a Scanner object for keyboard input
    

46. 46        Scanner keyboard = new Scanner(System.in);
    

47

// Pass the array to the showArray method

showArray(numbers);

// Pass the array to the calcAverage method

   calcAverage(numbers);
}//end of main

48       System.out.println("Enter a series of " + array.length
+ " numbers:");
49

50. 50        //Read the values into the array
    

51. 51        for (int index = 0; index < array.length; index++)
    

52       {
53          System.out.println("Enter number " + (index + 1) +
":");

54          array[index] = keyboard.nextInt();
55       }
56    }//end of getValues() method
57

58 /**

59. 59        The showArray method accepts an array as
    

60. 60        an argument and displays its contents.
    

61. 61        @param array A reference to the array
    

62    */
63
64    public static void showArray(int[] array)
65    {

66. 66        //Display the array elements.
    

67. 67        for (int index = 0; index < array.length; index++)
    

68       {
69          System.out.println(array[index] + " ");
70       }
71
72    } //end of showArray() method
73
74    /**

75. 75        The calcAverage method accepts an array as
    

76. 76        an argument and calculates the sum of its
    

77. 77        elements and then calculates the average of
    

78. 78        its elements
    

79. 79        @param array A reference to the array
    

80    */
81
82    public static void calcAverage(int[] array)
83    {

84. 84 int sum = 0;

85. 85        double average = 0;
    

86. 86        //Sum the array elements.
    

87. 87        for (int index = 0; index < array.length; index++)
    

88       {
89          sum = sum + array[index];
90       }
91       average = (double)sum / array.length;
92
93       System.out.println("Sum: " +  sum);

94       System.out.println("Average: " + average);
95    }//end of calcAverage() method
96
97 }//end of class

98

CODE 2

1 /**
 2  * TemperaturesMultidimensionalArrays
 3  * @Sherri Vaseashta
 4  * @Version1
 5  * @see
 6  */
 7
 8 import java.util.Scanner;
 9 public class TemperaturesMultidimensionalArrays

10 {
11    public static void main(String[] args)
12    {
13

14. 14        Scanner keyboard = new Scanner(System.in);
    

15. 15        int numDays = 0;
    

16. 16        String[] dates;
    

17. 17        double[][] temperatures;
    

18. 18 int row = 0;

19. 19 int col = 0;

20
21       System.out.println("This is the Temperature Stats
Program.");
22       System.out.println("It allows you to analyze
temperatures over a period of time.");
23       System.out.println("How many days do you want to track
temperatures?");

24. 24        numDays = keyboard.nextInt();
    

25. 25        keyboard.nextLine(); //needed any time you input a
    

String or char after a double|int
26

27. 27        dates = new String[numDays];
    

28. 28        temperatures = new double[numDays][3];
    

29

30. 30        //load (read) the data into the arrays
    

31. 31        for (row = 0; row < numDays; row++)
    

32       {
33          System.out.println("Please enter the date: (ex. Oct.
12)");

34. 34           dates[row] = keyboard.nextLine();
    

35. 35           System.out.println("Please enter the low for " +
    

dates[row]);

36. 36           temperatures[row][0] = keyboard.nextDouble();
    

37. 37           System.out.println("Please enter the high for " +
    

dates[row]);

38. 38           temperatures[row][1] = keyboard.nextDouble();
    

39. 39           temperatures[row][2] = (temperatures[row][0] +
    

temperatures[row][1]) / 2;
40          keyboard.nextLine();

41       }
42
43       //print the contents of the arrays to see if the data
is there. This is okay for a few columns
44       System.out.printf("%-20s%20s%20s%20s\n", "Dates",
"Lows", "Highs", "Average Temps");
45       for (row = 0; row < numDays; row++)
46       {
47          System.out.printf("%-20s%20.1f%20.1f%20.1f\n",
dates[row], temperatures[row][0], temperatures[row][1],
temperatures[row][2]);
48       }
49
50       //print the contents of the arrays to see if the data
is there. This is how to do it at WORK.
51       //You have to use nested loops when you have more than
a few columns
52       System.out.printf("\n\n%-20s%20s%20s%20s\n", "Dates",
"Lows", "Highs", "Average Temps");
53       for (row = 0; row < numDays; row++)
54       {

55. 55           System.out.printf("%-20s", dates[row]);
    

56. 56           for (col = 0; col < 3; col++)
    

57          {
58             System.out.printf("%20.1f",
temperatures[row][col]);
59          }
60          System.out.println();
61       }
62
63
64
65    }//end of main
66 }// end of class

Answer 1

Below is the solution:

public class PassArray {
   public static void main(String[] args) {
       final int ARRAY_SIZE = 4; // Size of the array
       // Create an array.
       int[] numbers = new int[ARRAY_SIZE];
       // Pass the array to the getValues method
       getValues(numbers);
       System.out.println("Here are the numbers that youentered:");
       // Pass the array to the showArray method
       showArray(numbers);
       // Pass the array to the calcAverage method
       calcAverage(numbers);
   } //end of main

   private static void getValues(int[] array) {
       // Create a Scanner object for keyboard input
       Scanner keyboard = new Scanner(System.in);
       System.out.println("Enter a series of " + array.length + " numbers:");
       // Read the values into the array
       for (int index = 0; index < array.length; index++) {
           System.out.println("Enter number " + (index + 1) + ":");
           array[index] = keyboard.nextInt();
       }
   }
   // end of getValues() method

   public static void showArray(int[] array) {
       // Display the array elements.
       for (int index = 0; index < array.length; index++) {
           System.out.println(array[index] + " ");
       }
   } // end of showArray() method

   /*
   * 75 The calcAverage method accepts an array as 76 an argument and calculates
   * the sum of its 77 elements and then calculates the average of 78 its elements
   * 79 @param array A reference to the array
   */

   public static void calcAverage(int[] array) {
       int sum = 0;
       double average = 0;
       // Sum the array elements.
       for (int index = 0; index < array.length; index++) {
           sum = sum + array[index];
       }
       average = (double) sum / array.length;
       System.out.println("Sum: " + sum);
       System.out.println("Average: " + average);
   }// end of calcAverage() method
}// end of class

Sample output:

Enter a series of 4 numbers:
Enter number 1:
3452
Enter number 2:
4564
Enter number 3:
8756
Enter number 4:
3232
Here are the numbers that youentered:
3452
4564
8756
3232
Sum: 20004
Average: 5001.0

import java.util.Scanner;
public class TemperaturesMultidimensionalArrays {
   public static void main(String[] args) {
       Scanner keyboard = new Scanner(System.in);
       int numDays = 0;
       String[] dates;
       double[][] temperatures;
       int row = 0;
       int col = 0;
       System.out.println("This is the Temperature StatsProgram.");
       System.out.println("It allows you to analyze temperatures over a period of time.");
       System.out.println("How many days do you want to track temperatures?");
       numDays = keyboard.nextInt();
       keyboard.nextLine(); // needed any time you input a String or char after a double|int
       dates = new String[numDays];
       temperatures = new double[numDays][3];
       // load (read) the data into the arrays
       for (row = 0; row < numDays; row++) {
           System.out.println("Please enter the date: (ex. Oct.12)");
           dates[row] = keyboard.nextLine();
           System.out.println("Please enter the low for " + dates[row]);
           temperatures[row][0] = keyboard.nextDouble();
           System.out.println("Please enter the high for " + dates[row]);
           temperatures[row][1] = keyboard.nextDouble();
           temperatures[row][2] = (temperatures[row][0] + temperatures[row][1]) / 2;
           keyboard.nextLine();
       }

       // print the contents of the arrays to see if the data is there. This is okay
       // for a few columns
       System.out.printf("%-20s%20s%20s%20s\n", "Dates", "Lows", "Highs", "Average Temps");
       for (row = 0; row < numDays; row++) {
           System.out.printf("%-20s%20.1f%20.1f%20.1f\n", dates[row], temperatures[row][0], temperatures[row][1],
                   temperatures[row][2]);
       }

       // print the contents of the arrays to see if the data is there. This is how to
       // do it at WORK.
       // You have to use nested loops when you have more than a few columns
       System.out.printf("\n\n%-20s%20s%20s%20s\n", "Dates", "Lows", "Highs", "Average Temps");
       for (row = 0; row < numDays; row++) {
           System.out.printf("%-20s", dates[row]);
           for (col = 0; col < 3; col++) {
               System.out.printf("%20.1f", temperatures[row][col]);
           }
           System.out.println();
       }
   }// end of main
}// end of class

Sample output:

This is the Temperature StatsProgram.
It allows you to analyze temperatures over a period of time.
How many days do you want to track temperatures?
3
Please enter the date: (ex. Oct.12)
oct.12
Please enter the low for oct.12
12
Please enter the high for oct.12
60
Please enter the date: (ex. Oct.12)
Jan.10
Please enter the low for Jan.10
10
Please enter the high for Jan.10
40
Please enter the date: (ex. Oct.12)
Feb.14
Please enter the low for Feb.14
19
Please enter the high for Feb.14
60
Dates                               Lows               Highs       Average Temps
oct.12                              12.0                60.0                36.0
Jan.10                              10.0                40.0                25.0
Feb.14                              19.0                60.0                39.5

Dates                               Lows               Highs       Average Temps
oct.12                              12.0                60.0                36.0
Jan.10                              10.0                40.0                25.0
Feb.14                              19.0                60.0                39.5