[JAVA BASIC] 1. Write a complete Java method called computeAverage that takes an

Question

[JAVA BASIC]

1.   Write a complete Java method called computeAverage that takes an array of doubles as a parameter and returns their average as a double. Use a while loop to process the array. (3 points)

2.   Write a complete Java method called sliceString that takes a String as a parameter and returns an ArrayList of Character data with each char in the String represented as a separate element in the ArrayList. Use a for loop to process the string. For example, if the method is passed the string “cat”, it returns an ArrayList of 3 Characters: c, a, t. (3 points)

3. Write a complete Java method called printTable that takes a 2-dimensional array of Strings (remember: this is a table, not a list) as a parameter and prints the contents of the array to the command line. Separate the strings on a row using tabs. (Hint: use " " to include a tab in your output) Each row should end with a new line. Below is some example output. (3 points)

This   is   a   table

with   three   rows   and

   four   cols   of   data

Explanation / Answer

1.

static double computeAverage(double array[]){
       double avg = 0;
       for(int i = 0; i < array.length; i++){
           avg += array[i];
       }
       avg /= array.length;
       return avg;
   }

2.
  
   static ArrayList sliceString(String str){
       ArrayList al = new ArrayList();
       for(int i = 0; i < str.length(); i++){
           al.add(str.charAt(i));
       }
       return al;
   }

3.
   static void printTable(String arr[][]){
       for(int i = 0; i < arr.length; i++){
           for(int j = 0; j < arr[i].length; j++){
               System.out.print(arr[i] + " ");
           }
           System.out.println();
       }
   }

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