First Java Program

//***********Begin program***********************
//creates a class called lightbulb and three
//attributes color, wattage, and bulbstate
class lightbuld {
  String color;
  String wattage;
  boolean bulbstate;
   
//Changes the state of the bulb to on if the bulb is turned
// off
void turnOn() {
  if (bulbstate == false) {
    bulbstate = true;
  }
}
//displays the current color, wattage and state of bulb
void displaylightbulb() {
  System.out.println("The lightbuld is a:" color + wattage);
  if (bulbstate == true) 
    System.out.println("The lightbuld is on");
  else {
    System.out.println("The lightbulb is off");
}
//First three statements set attributes of lightbulb
//displaylightbulb displays current state
//turnon changes state of bulb to on
//last call to displaylightbulb displays new properties of bulb
public static void main (String arguments[]) {
  lighbulb m = new lighbulb();
  m.color = "red";
  m.wattage = "100";
  m.bulbstate = false;
  m.displaylightbulb();
  m.turnOn();
  m.displaylightbuld();
}
 
}

I am trying to write a program that displays the characteristics of a lightbulb, changes and displays the color of the lightbulb, changes and displays wattage of lightbulb, and turns the lightbulb on if it is off. When I compile I am getting four errors. Can someone give me a nudge in the right direction to fix my errors? Thanks.

[ EFH: Added some [ CODE][ /CODE] tags to preserve formatting ]
[ March 01, 2006: Message edited by: Ernest Friedman-Hill ]

Do you want to tell us what the errors are and which lines they are on ?

Hi,

Welcome to JavaRanch!

I can see three errors; there may be more, or one of the messages may be a red herring, which happens some times.

1) on the very first line, you named the class lightbuld, but then later use the correct spelling.

2) In "displaylightbulb", you forgot a "+" between the first string and 'color' in the first println call.

3) Also in the same routine, there's an open brace after the "else", but no matching close brace for it.

For future references: when posting code that won't compile, it's helpful to post the error messages too; it makes it easier on people who'd like to help!

ok first of all, "m.wattage", i didnt see the method to set that in your
code

or m.Color for that matter...

yeah you have methods that modify these, but none that set them.

you need to make

something along those lines, i hope this helped a little bit

There is also a problem in the String concatenation.

That helped a bunch, thanks a lot!!!

For future reference, please post the compiler error messages you get. This will help us more easily answer your questions and suggest solutions.

Layne