Basic method creation

[alexix]

Hi, I have a basic interface with an oval attached to a Point. I want my oval to move around the interface and change direction when it hits a border.

I'm trying to make a method that checks the points location but I don't know how to attach my method to the class Point from java.awt

The method that I made looks like this:

public String Border(Point point){
if(point.y+50>450) {return "south";}
if(point.y-10<1) {return "north";}
if(point.x+50>450) {return "east";}
if(point.x-10<1) {return "west";}
else return "center";
}

and I want to use it like this:
if(point.Border=="south") {point.GoNorthEast();} //I didn't make method for GoNorthEast yet, I wanna know how to use my Border method first.

[milovan]

First: always use .equals(String s) method to compare strings and not == operator.
Next: you have created your Border method, just use it with exact signature

if(point.Border(somePoint).equals("south")) {
    point.GoNorthEast();
}

And keep convection when naming methods, they should start with lower letter..

[DarrylBurke]

You didn't bother to reply to the response on your earlier thread: Editing a text file

Why should we expect any better behavior this time round?

Also, please go through the following links and edit your post accordingly:
Guide For New Members
BB Code List - Java Programming Forum - Learn Java Programming

db

[alexix]

Thanks milovan for the tips, but my problem still stands, I don't know how to add the method to a class that is in java.api, so I can use it for that class.

DarrylBurke, sorry for not replying there. I read that post and understood what I had to do, but didn't had time to test it then and later on I assume repling would have just been grave post digging.

[Tolls]

Write your own class (MovingPoint?) and give it a Point attribute.
Your class will have the above method.

[alexix]

Write your own class (MovingPoint?) and give it a Point attribute.
Your class will have the above method.

I already tried that yesterday and didn't work (because I didn't knew I had to use super() to get Point's constructor)

Worked now, thanks everyone.

Another problem, seems my method isn't what I had in mind. I want to use my method like this:

if("south".equals(point.border())) {//do stuff}

However, my method has Point as paramenter, (and it seems weird to type point.border(point) when calling the method). How can I make my method so it doesn't require a parameter? (if I just declare it "Public String border()" I cannot use point.x and point.y in it.