title: Java Error: first type: double, second type: String
body: <p>I just started learning Java programming, and received this error on my first project in the last part, "fee before taxes" I must be messing up my variables, but I am not sure. Any ideas? </p>
  
  <p>This is the error I receieved on the compiler: </p>
  
  <blockquote>
    <p>error: bad operand types for binary operator </p>
    
    <p>first type:  double</p>
    
    <p>second type: String</p>
    
    <p>2 errors</p>
  </blockquote>
  
  <pre><code>import java.util.Scanner;
  
  public class project1Naja {
  
    public static void main(String[] args) {  
  
       String firstName; // To hold first name
       String lastName; // To hold last name
       String hours; // Child's hours   
       final String date; // Date of Service
       final double RATE; // Hourly rate
       final double TAX_RATE; // Tax percentage
       int fee; // Cost before tax added
       int taxAmount; // Tax total
       double totalFee; // Fee including tax
  
       // Scanner created to read input.
       Scanner childCare = new Scanner(System.in);
  
       System.out.print("Enter your first name: " );
       firstName = childCare.nextLine();
  
       System.out.print("Enter your last name: " );
       lastName = childCare.nextLine();
  
       System.out.print("Enter the child's hours here: " );
       hours = childCare.nextLine();
  
       System.out.print("Enter date here: " );
       date = childCare.next();    
  
       System.out.println("Child Care Service Bill For: " + firstName 
                      + lastName);
       System.out.println("Date of Service: " + date);    
  
  
       System.out.println("Number of hours: " + hours);    
       System.out.println("Fee before taxes: " = RATE * hours); 
    }
  }
  </code></pre>