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Re: Compile error: java: <identifier> expected

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On Saturday, June 23, 2018 at 1:06:04 PM UTC+1, Eric Sosman wrote:
> On 6/22/2018 3:54 AM, fernandofernando998877@gmail.com wrote:
> > hello i immediately need help!!!
> > i am trying to learn overloading and i am in 10 standard so please help me
> > i am getting identifier expected error
> > 
> > import jav.io.*;
> 
>      "jav"?
> 
> > public class Overload
> > {
> >       double r,side,l,b,AreaSquare,AreaCircle,AreaRectangle;
> >       public void area(side)//this the line where error occurs
> 
>      You must tell Java what type `side' is: a `double', an `int',
> or whatever.  Thus, for example,
> 
> 	public void area(double side)  // if `side' is a `double'
> 
> >       {
> >           side1=side;
> 
>      Similarly, you must specify the type of `side1'.  Java cannot
> just guess whether it should be a `double' or `float' or `long',
> you must write what you intend.  (You've made the same omission
> several more times; I won't point them all out but will trust you
> to fix them yourself.)
> 
> >           AreaSquare=side1*side1;
> >           System.out.println("AREA OF SQUARE="+Areasquare);
> >       }
> >       public void area(l,b)
> >       {
> >           l1=l;
> >           b1=b;
> >           AreaRectangle=l1*b1;
> >           System.out.println("AREA OF RECTENGLE="+AreaRectangle);
> >        }
> >        public void area(r)
> 
>      I anticipate trouble with this overload, because if you decide
> to make `r' a `double' and you have also made `side' a `double'
> above, then Java will have no way to distinguish the two methods:
> They will have identical parameter lists.  (The names of parameters
> don't disambiguate, only their number and types matter.)
> 
> >        {
> >            r1=r;
> >            PI=3.14;
> 
>      FYI, the predefined constant `Math.PI' is considerably more
> accurate.
> 
> >            AreaCircle=PI*r1*r1;
> >            System.out.println("AREA OF CIRCLE="+AreaCircle);
> >         }
> >         public static void main()throws IOException
> >         {
> >             BufferedReader in=new BufferedReader (new InputStreamReader(System.in));
> >             Overload obj=new Overload();
> >             System.out.println("ENTER THE SIDE OF SQUARE=");
> >             side1=Double.parseDouble(in.readLine());
> >             System.out.println("ENTER THE LENGTH OF RECTANGLE=");
> >             l1=Double.parseDouble(in.readLine());
> >             System.out.println("ENTER THE BREADTH OF RECTANGLE=");
> >             b1=Double.parseDouble(in.readLine());
> >             System.out.println("ENTER THE RADIUS OF CIRCLE=");
> >             r1=Double.parseDouble(in.readLine());
> >             obj.area(side);
> >             obj.area(l,b);
> >             obj.area(r);
> >          }
> >      }
> > 
> 
> 
> -- 
> esosman@comcast-dot-net.invalid
> Nine hundred forty-two days to go.

thanks very much!!!
my program is working!!!
i will always be grateful to you!!!
you helped me to improve!!!
thanks!!! thanks!!!
thanks!!!

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Re: Compile error: java: <identifier> expected fernandofernando998877@gmail.com - 2018-06-22 00:54 -0700
  Re: Compile error: java: <identifier> expected Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2018-06-23 14:37 +0300
  Re: Compile error: java: <identifier> expected Eric Sosman <esosman@comcast-dot-net.invalid> - 2018-06-23 08:05 -0400
    Re: Compile error: java: <identifier> expected fernandofernando998877@gmail.com - 2018-06-23 09:03 -0700

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