class MethodOverloading

{

// function that is called on program start

public static void main(String[] args)

{

Adder adder = new Adder();

int array[] = {1, 2, 3, 4};

// call and print the results of our functions

System.out.print("Calling 'adder' with 2 integers: ");

System.out.println(adder.add(1, 2));

System.out.print("Calling 'adder' with 3 integers: ");

System.out.println(adder.add(1, 2, 3));

System.out.print("Calling 'adder' with an array: ");

System.out.println(adder.add(array));

}

}

class Adder

{

public int add(int a, int b)

{

return a + b;

}

public int add(int a, int b, int c)

{

return a + b + c;

}

public int add(int array[])

{

int sum = 0;

// loop through our array and add each item to our sum

for (int i : array)

sum += i;

return sum;

}

}