Need help on mutliple class program.

This is my code so far and I have 1 error popping up on me.

Am I doing anything wrong.

Code :

import java.util.Scanner;
 
public class JavaTheHut_MutlipleClass
{
    private int number;
 
    public JavaTheHut_MultipleClass ()
    {
        System.out.println ("Welcome to the MultipleClass object!");
    }
 
    public void getNumber ()
    {
        Scanner input = new Scanner (System.in);
 
        System.out.print ("Please enter a non-negative, integer whole value: ");
        number = input.nextInt();
 
    }
 
    public void displayResults ()
    {
        System.out.printf ("%d: ", number);
    }
 
    public boolean isEven ()
    {
        if (number % 2 == 0)
 
            System.out.printf("%d=EVEN\n" , number);
 
        else
 
            System.out.printf("%d=ODD\n" , number);
    }
 
    public boolean isMultiple ()
    {
        if (number % 13 == 0)
 
            System.out.printf("%d=MULTIPLE\n" , number);
 
        else
 
            System.out.print("%d=NOT\n" , number);
    }
}

This is my error:

JavaTheHut_MultipleClass.java:27: error: invalid method declaration; return type required
public JavaTheHut_MultipleClass ()
^
1 error

This is what my outcome should look like using the code and its tester code:

Welcome to the MultipleClass object!
0:MULTIPLE:EVEN
Please enter a non-negative, integer whole value: 39
39:MULTIPLE:ODD

This is my test code:

Code :

 
public class JavaTheHut_MultipleClassTest
{
    public static void main ( String args [] )
    {
        JavaTheHut_MultipleClass foo = new JavaTheHut_MultipleClass();
        foo.displayResults();
        foo.getNumber();
        foo.displayResults();
    }
}