Is there such thing as a getClass() method like the getWorld() method?
kiarocks wrote ...
2011/7/29
getClass()?
Yup, it's on every object:
http://download.oracle.com/javase/1.4.2/docs/api/java/lang/Object.html#getClass()
Again, kiarocks, you may want to be more specific
-- Called from where
-- How is String declared in Class
-- etc.
The more information we have, the better armed we are at giving you a helpful response.
You do not have to give the exact variable names you may have or explain what you are trying to do, just give the information required to bring across the idea of what you want to accomplish, programmatically.
Again danrocks, you expose a lack of knowledge, while the matter is so obvious.
@hotrails, who are you referring to by danrocks, and what matter is so obvious?
You may want to be more specific, also!
I pray that you are not thinking that you are better than any (or every) one else.
This is a site for learning, not for railing on others. If you have anything helpful to say, then say it.
Otherwise, keep your posts to a minimum (maybe zero). Thanks in advance.
(By the way, this is not to get on your case; it is just that there should be a certain etiquite (spelling?) that should be maintained here, and if that was not your intent, praises be, but the lack of specifics in your posting makes it appear that way,and also makes it unhelpful (or maybe it unhelpfulness makes your intentions appear to be other than honorable; and this is just food for thought).
how could you get a string from one class?
If you're referring to getting the name of the class, getSimpleName() might be what you're after? But as people have already said in one form or another, your question is very ambiguous! Again, you'd really help yourself if you were more specific (and help those trying to help you!)ok, so it is declared in class TextMaker:
and i'm trying to call it in SaveButton class:
1 | public String txtString = ""; |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)import java.io.*;/** * Write a description of class SaveButton here. * * @author (your name) * @version (a version number or a date) */public class SaveButton extends Actor{ /** * Act - do whatever the SaveButton wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ public void act() { try{ // Create file FileWriter fstream = new FileWriter("out.txt"); BufferedWriter out = new BufferedWriter(fstream); out.write(getWorld().getStringFromObject(TxtString));<here!! //Close the output stream out.close(); }catch (Exception e){//Catch exception if any System.err.println("Error: " + e.getMessage()); } } } |
So you just want to access the txtString variable in the world object? (i.e. TextMaker is your world class?)
Then - change line 21 to:
By the way, you are not getting the string from the class, but from the object which is an instance of the class.
1 | out.write(((TextMaker)getWorld()).txtString); |
This would be from the actor, in SaveButton on the line you highlighted earlier. Note that Java is case sensitive - txtString is not the same as TxtString!
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