Newby Java Question

[lederhosen]

Ok so the premise is this: I need to write a java program that constructs a color object with values of 50, 100 and 150. Then I need to apply the brighten method and print the results. This is what I have so far:

import java.awt.Color;

public class BrightenTester
{
public static void main(String[]args)
{
new Color (50,100,150);
Color brighter;
}
}

I know it's messed up, I just don't know how to get it to print the new values. Any help?

 

[wkinney]

Firstly you need to store the newly created Color object, right now it is being created, but it is not being stored. you need:

Color myColor = new Color (50,100,150);

brighter is a method of the object Color, in this case 'myColor'. To reference an object's method, you need to use the . operator, e.g.
myColor.brighter();

 

[lederhosen]

Thank you. Then I went to print the resulting color by doing System.out.println(myColor); but what I got was the original values (50,100,150). Any ideas?

 

[Thyme]

Look at the API (http://java.sun.com/j2se/1.4.2/docs/api/) you'll see that Brighter returns a Color and does not modify the calling object.

 

[lederhosen]

Originally posted by: Thyme
Look at the API (http://java.sun.com/j2se/1.4.2/docs/api/) you'll see that Brighter returns a Color and does not modify the calling object.

Ok so how would I get it to modify (brighten) the color object? And then how would I get it to print the results? Don't need to see it just the numbers.
Thanks

 

[Thyme]

I'll give you the answer, but you should be able to figure this out using the API or else I reccomend gettnig a better understanding of Java OOP.

import java.awt.Color;

public class BrightenTester
{
public static void main(String[]args)
{
Color myColor = new Color (50,100,150);
Color brighterColor = myColor.brighter();
System.out.println(brighterColor);
}
}

 

[lederhosen]

Thanks, but that is why I specified it was a newby question. I'm just learning, sorry.