OverLoad.java

import java.util.Scanner;

class Tres{
    public int sumar(int x, int y) {
        return x + y;
    }
}

class SubClase extends Tres {
    public float sumar(int x, float y) {
        return x + y;
    }

    public float sumar(float x, float y) {
        return x + y;
    }

    public float sumar(float x, float y, float z) {
        return x + y + z;
    }
}

public class OverLoad {
    public static void main(String[] args) {
        Scanner entrada = new Scanner(System.in);

        SubClase operacion = new SubClase();
        int int_x = 0;
        int int_y = 0;
        float float_x = 0;
        float float_y = 0;
        float float_z = 0;


        System.out.println("Suma de dos enteros int x, int y");
        System.out.printf("> ");
        int_x = entrada.nextInt();
        System.out.printf("> ");
        int_y = entrada.nextInt();
        System.out.println("Resultado: " + operacion.sumar(int_x,int_y));


        System.out.println("Suma de un entero y un float (int x, float y)");
        System.out.printf("> ");
        int_x = entrada.nextInt();
        System.out.printf("> ");
        float_y = entrada.nextFloat();
        System.out.println("Resultado: " + operacion.sumar(int_x,float_y));


        System.out.println("Suma de dos float (float x, float y)");
        System.out.printf("> ");
        float_x = entrada.nextFloat();
        System.out.printf("> ");
        float_y = entrada.nextFloat();
        System.out.println("Resultado: " + operacion.sumar(float_x,float_y));


        System.out.println("Suma de 3 float (float x, float y, float z)");
        System.out.printf("> ");
        float_x = entrada.nextFloat();
        System.out.printf("> ");
        float_y = entrada.nextFloat();
        System.out.printf("> ");
        float_z = entrada.nextFloat();
        System.out.println("Resultado: " + operacion.sumar(float_x,float_y,float_z));
    }
}