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frankly speaking , i dont have any idea what is hashcode for now... :(

hmm another clarification regarding with my first post... the toString() method...

this is how i understand.. how the toString() method works without even calling it directly by an object....

...

and how about this one... is this a good way of swapping a number?


public class SwapANumber {

private int number;

/**
*
* @param number

oh by the way, another follow up question about objects... while i was reading a section of the book, discussing about parameters and arguments, i notice something about "swapping",

of course...

thanks for the reply! and I'm glad all things were back into normal again ^^, anyway its still a bit peculiar to me how to understand objects and when and how to use a primitive type and a...

public class Operations {

private int number;

public Operations(int num) {

setTheNumber(num);
}

private void setTheNumber(int number) {