I have no idea?

[iimrii]

Well I am in college and my MIS teacher gave me this code to anylize and tell what it is doing...Well I have no idea if you guys can give me step by step definition of what this program is doing I would appreciate.

{
      public Point (int i, int j) {
        xCoord = i;
        yCoord = j;
       }

public void swap() {
      int temp = xCoord;
      temp=xCoord;
      yCoord= temp;
       }

public void printIt() {
      System.out.printIn("X coordinate = " + xCoord);
      System.out.printIn("Y coordinate = " + yCoord);
      }


private int xCoord; //X Coordinate
private int yCoord; //Y Coordinate

}

Public Point () {
      xCoord = 0;
      yCoord = 0;
}

I would really appreciate if you can tell me each step

Thanks very much in advance.

[axion_sa]

class testPoint
{
	// Just a test class.
	public static void main(String args[])
	{
		Point pt = new Point(1, 2);
		pt.swap();
		pt.printIt();
	}
}

class Point
{
	// Property variables.
	private int xCoord; //X Coordinate
	private int yCoord; //Y Coordinate

	/* 
		Constructor (default). 
		This is a fairly pointless - it has no accessor
		functions to set the properties.
	*/
	
	public Point () 
	{
    	    xCoord = 0;
    	    yCoord = 0;
	}

	// Overridden constructor.
	public Point (int i, int j) 
	{
    	    xCoord = i;
    	    yCoord = j;
	}

	/* 	
		This does NOT swap the values - it
		actually gives them both the same.
	*/
	public void swap() 
	{
    	int temp = xCoord;
      	// The following line is pointless - it's initialised above.
      	temp=xCoord; 
      	yCoord= temp;
      	
      	/*
      		This is how you'd want to swap the values.
      		
      		int temp = xCoord;
      		xCoord = yCoord;
      		yCoord = temp;
      	*/
	}
	
	// This just outputs the values to the system output stream.
	public void printIt() 
	{
		// Note - your code printIn & not println.
     	System.out.println("X coordinate = " + xCoord);
      	System.out.println("Y coordinate = " + yCoord);
    }
}

[CornedBee]

A pointless point