Question

I am learning java. I wrote the following code but I am getting this error “cant make a static reference to a non static input field” in Arrayfunction(), when I try to take input. Why is this so and How can I fix it?

import java.util.*;
public class MultidimArrays {

Scanner input= new Scanner(System.in);

public static void main(String args[])
{       
    int array[][]= new int[2][3];

    System.out.println("Passing array to a function");

    Arrayfunction(array);
}

public static void Arrayfunction(int array[][])
{
    System.out.println("Inside Array function");

    for(int i=0;i<array.length;i++)
    {
        for(int j=0;j<array[i].length;j++)
        {
            System.out.println("Enter a number");
            array[i][j]=input.nextInt();// error
    }
}

}

Answer 1

Scanner is not defined as static therefore is in the wrong scope

Either create the Scanner instance inside Arrayfunction or create your scanner with

private static Scanner input= new Scanner(System.in);