Java OOP HomeWork [closed]

Question

My professor is super strict and just want to know if I have solved this correctly.

Design a class named Location for locating a maximal value and its location in a two-dimensional array. The class contains public data fields row, column, and maxValue that store the maximal value and its indices in a two-dimensional array with row and column as int types and maxValue as a double type. Write the following method that returns the location of the largest element in a two-dimensional array:

 public static Location locateLargest(double[][] a) 

The code is:

public static void main(String[] args) { System.out.println("Please enter the row and column size"); int row = kk.nextInt(); int column = kk.nextInt(); System.out.println("Enter the values between 1 and 10"); double[][] d = getArray(row,column); Location l = locateLargest(d); System.out.println(l.toString()); } public static double[][] getArray(int row,int column){ double [][] a = new double[row][column]; double input; for (int i=0;i<a.length;i++){ for (int j=0;j<a[i].length;j++){ a[i][j] = kk.nextDouble(); } } return a; } public static Location locateLargest(double[][] a){ int rowIndex=0; int columIndex=0; double max = a[rowIndex][columIndex]; for (int i=0;i<a.length;i++){ for (int j=0;j<a[i].length;j++){ if (a[i][i]>max) { max = a[i][j]; rowIndex=i; columIndex=j; } } } return new Location(rowIndex,columIndex,max); } } class Location{ int row,column; double maxValue; Location(){ } Location(int row,int column,double maxValue){ this.row = row; this.column = column; this.maxValue = maxValue; } public String toString(){ return "The largest value is "+maxValue+" at row "+row+" and column "+column; } } 

Answer 1

• The class Location must be a public class Location since it doesn't make sense to have a public method with a non-public return type.
• The fields of the Location class must be public int and public double, since the task description​ says so.
• The fields of the Location class should be public final int and public final double since they won't change after being initialized once.
• The no-arguments constructor then contains a compilation error and should be removed completely.
• You should let the IDE format your code so that it is nice to read: Ctrl+Shift+F in Eclipse, or Ctrl+Alt+L in IntelliJ.
• Your implementation is completely correct, congratulations.