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Thread: Boolean code question!

  1. #1
    Member Scorks's Avatar
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    Default Boolean code question!

    Hello!

    My question that I'm creating a code for is as follows:

    Write the following methods and provide a program to test them:
    boolean sorted(double x, double y, double z),returning true if the arguments are sorted, with the smallest one coming first.

    This is my code:
    import java.util.Scanner;
    public class a3q1
    {
            public static void main ( String args[])
       {
    Scanner in = new Scanner(System.in);
     
    double x = in.nextDouble();
    double y = in.nextDouble();
    double z = in.nextDouble();
       }
    public static boolean inorder(double x, double y, double z) {
    if (x < y && y < z) {
    System.out.println("Correct!");
    }
     
    else {
    System.out.println("incorrect. Try again!");
       }
    }
    }


    For some reason however, it won't compile. My question is, how do I fix the compiling error, and do you think this code is suitable for the question asked?


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Boolean code question!

    What is the compiler error?

    By the way, you flubbed up your code tags.
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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  3. #3
    Member Scorks's Avatar
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    Default Re: Boolean code question!

    Quote Originally Posted by KevinWorkman View Post
    What is the compiler error?

    By the way, you flubbed up your code tags.
    Heh, yeah. Fixed that.

    The compiler error is:


    a3q1.java:20: missing return statement
    }
    ^
    1 error

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    Member Zyrion's Avatar
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    Default Re: Boolean code question!

    This code compiles with no syntax errors. This program calls your inorder() method and returns true or false in the main method.

    import java.util.Scanner;
     
    public class a3q1
    {
    public static void main ( String args[])
       {
           Scanner in = new Scanner(System.in);
     
           double x = in.nextDouble();
           double y = in.nextDouble();
           double z = in.nextDouble();
           boolean myb = inorder( x, y, z );    //call method inorder() and pass variables x, y, and z to the argument. Return value is stored in boolean
     
           if( myb = true )
                System.out.println("Correct!");
           else
                System.out.println("incorrect. Try again!");
     
    }//end of main method
     
    public static boolean inorder(double x, double y, double z) {
        if (x < y && y < z) 
            return true;
        else 
            return false;
     
        }//end of inorder method
    }//end of cloass

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    Scorks (March 1st, 2013)

  6. #5
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: Boolean code question!

    Zyrion, please read this: The Problem with Spoon-feeding
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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  7. #6
    Member Zyrion's Avatar
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    Default Re: Boolean code question!

    Quote Originally Posted by KevinWorkman View Post
    Zyrion, please read this: The Problem with Spoon-feeding
    I understand.

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