incompatible types

[angelicatomnob]

import java.io.*;
public class Telegram
{
public static void main ()throws IOException
{
BufferedReader dataIn=new BufferedReader (new InputStreamReader (System.in));
double no=0, cost=0, fee=0, pay=0;
String sno= "", scost= "", sfee= "", spay= "", change= "";

System.out.println("Enter number of words: ");
sno=dataIn.readLine();
no=Double.parseDouble(sno);
System.out.println("Cost per word: ");
scost=dataIn.readLine();
cost=Double.parseDouble(scost);

fee=no*cost;
System.out.println("Total fee: "+fee);

System.out.println("Amount payed: ");
spay=dataIn.readLine();
pay=Double.parseDouble(spay);

change=pay-fee;
System.out.println("Change: "+change);
}
}



what is wrong with this? please help me.

[Tolls]

import java.io.*;
public class Telegram
{
    public static void main ()throws IOException
    {
    BufferedReader dataIn=new BufferedReader (new InputStreamReader (System.in));
    double no=0, cost=0, fee=0, pay=0;
    String sno= "", scost= "", sfee= "", spay= "", change= "";
    
     System.out.println("Enter number of words: ");
     sno=dataIn.readLine();
     no=Double.parseDouble(sno);
     System.out.println("Cost per word: ");
     scost=dataIn.readLine();
     cost=Double.parseDouble(scost);
     
     fee=no*cost;
     System.out.println("Total fee: "+fee);
     
     System.out.println("Amount payed: ");
     spay=dataIn.readLine();
     pay=Double.parseDouble(spay);
     
     [COLOR="#FFFF00"]change=pay-fee;[/COLOR]
     System.out.println("Change: "+change);
    }
}

Please use code tags when posting code.

'change' is a String.
The right hand side of that assignment is a double.
You can't assign a double to a String.

Also...yellow is almost impossible to read.

[JosAH]

And the signature of your main() method doesn't make it the main method of your class.

kind regards,

Jos

[angelicatomnob]

oh. thanks.. and sorry for some of those inconveniences! i'm just new here.