Sobre carga de la clase mayor

package sobrecarga; 

import java.util.Scanner; 

public class mayor { 

public static int mayor(int a,int b) { 

if(a>b)

return a;

else return b; 

}

public static double mayor(Double a,Double b) { 

if(a>b) return a;

else return b;

}

public static void main(String[] args) { 

int x,y;

double z,w;

Scanner entrada=new Scanner(System.in); System.out.println("anote un numero entero"); x=entrada.nextInt();

System.out.println("anote un numero entero"); y=entrada.nextInt(); 

System.out.println("anote un numero decimal"); z=entrada.nextDouble(); 

System.out.println("anote un numero decimal"); w=entrada.nextDouble(); 

System.out.println("el numero entero mayor es:" + mayor(x,y)); 

System.out.println("el numero decimal mayor es :" + mayor(z,w)); 

}

}