what wrong

[pro85]

public Balloon(int initialDiameter, int initialX, int initialY) {
diameter = initialDiameter;
xCoord = initialX;
yCoord = initialY;
}


error occur is Balloon.java : 1 : ' class' or ' interface ' expected
public Balloon(int initialDiameter, int initialX, int initialY) {

when i change
public balloon(int initialDiameter, int initialX, int initialY) {

the error still the same >>>Balloon.java : 1 : ' class' or ' interface ' expected

[mtyoung]

a class file should has following structure

package xxx // if exist

import ... // if needed

public class XXXNAME{
     public XXXNAME(){} // default constructor if needed

     other methods
     variables
}

[CJSLMAN]

A class needs to contain methods (the methods do all the work). A method that is called when the class is instantiated is called a constructor.

Providing Constructors for Your Classes (The Java™ Tutorials > Learning the Java Language > Classes and Objects)

Defining Methods (The Java™ Tutorials > Learning the Java Language > Classes and Objects)

Luck,
CJSL

[satya kishore]

[QUOTE=pro85;55264]
you havn't declared any class or interface even you havn't declared the int variables xCoord,yCoord

public class Balloon{
int xCoord=0;
int yCoord=0;
public Balloon(int initialDiameter, int initialX, int initialY) {
diameter = initialDiameter;
xCoord = initialX;
yCoord = initialY;
System.out.println(" values"+xCoord);
System.out.println(" values"+yCoord);
}


}