How can I display a variable in Java ME (not text just a variable)?
I am hoping someone can help me. I have a very simple question, but for the life of me I cannot seem to locate an answer: How can I display a variable in Java ME? I see TextFields, TextBoxes, ChoiceGroups, etc., all of which don't seem to allow me to display a specific variable (only text). Any help would be greatly appreciated. Below see a snipet of my code - which I might add is not working?
else
{
mpg = ((endMileage - beginMileage)/ gallons;
txtFld4= new TextField ("TOTAL MILES PER GALLON:"," ", 20, (int)mpg);
form2.append(txtFld4);
Display.getDisplay(this).setCurrent(form2);
}
Of course, the a开发者_StackOverflowbove code stops in my Java Debugger on the instantiation of the txtFld4. I assume that it is notaccepting the 'mpg' variable.
Any guidance would be appreciated.
TextField(java.lang.String label, java.lang.String text, int maxSize, int constraints)
You're doing it wrong, do:
txtFld4= new TextField ("TOTAL MILES PER GALLON:",""+mpg, 20, SOME_CONSTANT_FOR_TEXTFIELD_HERE);
What does it mean to display "a variable"? What would it look like to display a ServerSocket?
What you need to do is turn the variable into a String, and it can then be shown.
txtFld4 = new TextField("Total MPG: " + mpg.toString());
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