Java OOP HomeWork [closed]

Posted on


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);


    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];

        return new Location(rowIndex,columIndex,max);

class Location{

    int row,column;
    double maxValue;



    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;



  • 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.

Leave a Reply

Your email address will not be published. Required fields are marked *