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Thread: "Illegal Start of Expression" ?? CANT SOLVE

  1. #1
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    Default "Illegal Start of Expression" ?? CANT SOLVE

    I understand that you can't call a method within a method but I just can't see whats going on here...PLEASE HELP


    import java.util.Scanner;

    public class mg

    {
    public static void main ( String[] args)
    {
    public static double milligrams (double bodyweight)
    {

    double milligrams = bodyweight * .8;
    return milligrams;
    }

    double result1 = milligrams(a);

    System.out.println(" How much do you weigh?");
    double a = in.nextInt();
    System.out.println(" You need to take " + result1);
    }
    }
    }

    --- Update ---

    Errors :

    mg.java:8: illegal start of expression
    public static double milligrams (double bodyweight)
    ^
    mg.java:8: ';' expected
    public static double milligrams (double bodyweight)
    ^
    mg.java:8: '.class' expected
    public static double milligrams (double bodyweight)
    ^
    mg.java:8: ';' expected
    public static double milligrams (double bodyweight)
    ^
    mg.java:22: class, interface, or enum expected
    }
    ^


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: "Illegal Start of Expression" ?? CANT SOLVE

    Methods can not be defined inside of other methods. Make sure all method definitions are ended with a } before starting the definition of the next method.

    Hint: It helps keep track of the end of a method by putting a comment on the ending } with the name of the method it is ending
       } // end main()
    If you don't understand my answer, don't ignore it, ask a question.

  3. The Following User Says Thank You to Norm For This Useful Post:

    ahmade (April 11th, 2013)

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    Default Re: "Illegal Start of Expression" ?? CANT SOLVE

    Thank you! I understand the problem but I just can't see where the problem is...

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    Super Moderator Norm's Avatar
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    Default Re: "Illegal Start of Expression" ?? CANT SOLVE

    Start with the definition for the first method in the class. Find the { at the beginning of its definition
    Then look for the } at the end of its definition that pairs with that beginning {.

    There should NOT be any other methods defined between the { at the beginning of the method's definition
    and the } that ends that method's definition

    Did you add comments to the }s that end each method's definition? Doing that will help you see where the method definitions are.

    Please edit your post and wrap your code with code tags:
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.

    Proper formatting will also make it easier to see.
    If you don't understand my answer, don't ignore it, ask a question.

  6. #5
    Member Chris.Brown.SPE's Avatar
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    Default Re: "Illegal Start of Expression" ?? CANT SOLVE

    Your milligrams function is inside of your main function, move it outside of the function. You can still call it from inside the main function, you just cant define it inside the main function.
    Writing code is your job, helping you fix and understand it is mine.

    <-- Be sure to thank and REP (Star icon) those who have helped you. They appreciate it!

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    ahmade (April 25th, 2013)

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    Senior Member PhHein's Avatar
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    Default Re: "Illegal Start of Expression" ?? CANT SOLVE

    There are no functions in Java, goddammit!

  9. #7
    Member Chris.Brown.SPE's Avatar
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    Default Re: "Illegal Start of Expression" ?? CANT SOLVE

    Congrats you call them all methods. A function returns something, a procedure does not (aka a method that returns void). Some people just cant let go of the C++ and ADA terminology. Please forgive me oh powerful one!
    Writing code is your job, helping you fix and understand it is mine.

    <-- Be sure to thank and REP (Star icon) those who have helped you. They appreciate it!

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