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Hi. I have the midlet class like this in a.java
public class a extends MIDlet{
....
}
now i want to create a static method in this class for changing the current display. How do i do that?
Static Display k= new Display.getDisplay() gives an error
. Please dont just give me links.
Please copy and paste the full text of the error message.Quote:
gives an error
error- non-static variable cannot be referenced from a static method
So avoid that and code it in different way.
how? i cant make a new iinstance of a MIDlet, since it will give a security error. and i need to call the display.setcurrent from another class. how can i do that if the methos is not made static?
the keyword new is used in conjunction with a constructor. not with a static method. This is how you get a reference to the Display associated with a currently running MIDlet from within the class:Quote:
Originally Posted by arnab321
This cannot be executed in a static method or block as it references the instance alias this.Code:Display display = Display.getDisplay(this);
db
ok, then plz suggest me another method to call "Display display = Display.getDisplay(this);" from a class outside the midlet class.
if the midlet class is like:class a extends MIDlet{} can i replace "this" with something else, like the class name so that i can use it from an outside class?
Three ways:Quote:
Originally Posted by arnab321
1) Pass a reference to the MIDlet to the constructor of the other class
2) Pass a reference to the MIDlet's Display.getDisplay(this) to the constructor of the other class
3) Provide a method in your MIDlet that returns Display.getDisplay(this)
No. Read the API.Quote:
if the midlet class is like:class a extends MIDlet{} can i replace "this" with something else, like the class name so that i can use it from an outside class?
db