Question

Implement the ArrayMethod application containing an array that stores eight integers. The application should call the following five methods: 1. display - should display all the integers 2. displayReverse - should display all the integers in reverse order 3. displaySum - should display the sum of the integers 4. displayLessThan - should display all values less than a limiting argument 5. displayHigherThanAverage - should display all values that are higher than the calculated average value.

Answer 1

Answer:

public static void display(int [] arr){

   System.out.print("Arrays: ");

       for(int i =0;i<arr.length;i++){

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

       }

       System.out.println();

   }

   

public static void displayReverse (int [] arr){

   System.out.print("Arrays in reverse order: ");

       for(int i=arr.length-1;i>=0;i--){

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

       }

       System.out.println();

   }

   

public static int displaySum (int [] arr){

   System.out.print("Sum: ");

   int sum = 0;

       for(int i =0;i<arr.length;i++){

           sum+=arr[i];

       }

       return sum;

   }

   

public static void displayLessThan (int [] arr, int num){

       System.out.print("Less than "+num+": ");

       for(int i =0;i<arr.length;i++){

           if(arr[i]<num){

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

           }

       }

       System.out.println();

   }

public static void displayHigherThanAverage  (int [] arr){

       System.out.print("Higher than average: ");

       int sum = 0;

       for(int i =0;i<arr.length;i++){

           sum+=arr[i];

       }

       float average = sum/arr.length;

       for(int i =0;i<arr.length;i++){

           if(arr[i]>average){

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

           }

       }

       System.out.println();

   }

Explanation:

The methods were written in Java. See attachment for explanation where I used comments to explain each lines.

Note that lines that begin with double slash (//) are comments

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