import java.io.*; // import java.io package

public class Class1
{
	// declare three new integer variables as class members
	public int mySum1;
	public int mySum2;
	public int x;

	// our main function
	public static void main(String[] args) throws IOException
	{
		new Class1(); // call our Class1 constructor
	}

	public Class1() // our class constructor
	{
		// Part I///////////////////////////////
		x = 5;
		myFunc_1();	// call function 1
		System.out.println(mySum1); // display mySum1


		// Part II//////////////////////////////
		// call function 2, pass in the value 5 as an argument.
		myFunc_2(5);
		System.out.println(mySum2); // display mySum2


		// Part III/////////////////////////////
		// display the returned value of function 3
		System.out.println(myFunc_3(5));
	}

	public void myFunc_1() // define function 1
	{
		mySum1 = x + 5;
	}


	public void myFunc_2(int y) // define function 2 with an argument
	{
		mySum2 = y + 3;
	}


	public int myFunc_3(int z) // define function 3 with an integer argument
	{

		return  z + 2;
	}

}

/*
Learn to define different java class member functions.
and see how different functions handles the same type of task,
I have used different numbers so that you easier can tell them appart.



 Let us take a closer look at a function definition:
----------------------------------------------------------------
 public void myFunc_1()
 {
	mySum1 = x + 5;
 }
----------------------------------------------------------------
 public		- mean that this member can be handled by other classes

 void		- means that the function is empty, it returnes no value

 myFunc_1	- the name of the function

 {			- start function definition

 ()			- this means that there are no arguments

 mySum1 = x + 5;	- this is what our function does..

 }			- end function definition
----------------------------------------------------------------
 Decription:
 We must define what our function will do.
 This function takes the number 5,
 and adds it with the value from the argument called x
 and stores the value in the variable mySum.
----------------------------------------------------------------



 Let us take a closer look at a function call:
----------------------------------------------------------------
 myFunc_1();
----------------------------------------------------------------
 myFunc_1	- the name of the function

 ()			- there is no argument passed in

 ;			- end the function call
----------------------------------------------------------------
 Decription:
 You must call your function in order to "put it to work".
----------------------------------------------------------------
*/