The How-Tos When It Comes to Defining, Assigning, and Printing a Java Array 🔃

The How-Tos When It Comes to Defining, Assigning, and Printing a Java Array 🔃
  1. Defining an array (character type) of a size 3 called array java char [] array = new char[10]
  2. Ask user to enter 10 characters and assign each of the characters into the array java for (int i = 0; i < array.length; i++) array[i] = keyboard.next().charAt(0);
  3. Use the data in array to reverse a list called reverse so that the first element in the list called array is the last element in reverse java for (int i = 0; i < array.length; i++) reverse[reverse.length – i] = array[i];
  4. Write the first use way to use for-loop to print out all elements in the list called reverse java for (int i = 0; i < reverse.length; i++) System.out.print(reverse[i] + " " );
  5. Write the second use way to use for-loop to print out all elements in the list called reverse java for (char value : reverse) System.out.print(value + " ");
  6. Define a 3 by 4 floating point values array, called scores java double [][] scores = new double [3][4];
  7. Assign the value for each cell in the array called scores to columnIndex * 20 / rowIndex java for (int row = 0; row < scores.length; row++) for (int col = 0; col < scores[row].length; col++) scores[row][col] = col * 20 / (double) row;
  8. Print all the values in the array called scores java for (int row = 0; row < scores.length; row++) { for (int col = 0; col < scores[row].length; col++) System.out.print (scores[row][col] + "\t"); System.out.println(); }
  9. Write a findMax method which finds the maximum value in the data stored in scores java static double findMax(double [][] scores) { double max = scores[0][0]; for (int row = 0; row < scores.length; row++) for (int col = 0; col < scores[row].length; col++) if (scores[row][col] > max) max = myScores[row][col]; return max; }