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Thread: How to get constructed

  1. #1
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    Default How to get constructed

    I am currently working on an assignment where we have to make a class that encapsulates a person’s name in such a way that a program will run off it. Now, if it was just 2 classes I could get it to work fine, but the main program creates multiple objects, and these new objects are supposed to refer to one another for information. And this I am not sure how to do.

    For example, the first part of the program creates the object newName, and then has one enter information defining the variables FirstName, MiddleName, and LastName.
    Then it creates the object myName. At this point it is supposed to access the previous class, obtain the variable values from there, store them in the new class, and print them out. And, like I said, it's accessing the other class that I'm not sure how to do.

    The Line in question:
    Name myName = new Name(newName.getFirstName(), newName.getMiddleName(), newName.getLastName());

    Edit: and now I realize I screwed up the title. Probably means I should get to sleep sooner rather than later.


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: How to get constructed

    What problems are you having with that line of code? Does it compile?
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: How to get constructed

    Quote Originally Posted by Norm View Post
    What problems are you having with that line of code? Does it compile?
    Ah, sorry. The program compiles, and even runs. The issue is that it doesn't return the right values.

    Here's more of the complete code.

    Main Code(can not alter this, and there is more, but my issue isn't with those areas directly)
    import java.util.Scanner;
     
    public class Project1NameClass {
     
     
    	public static void main(String[] args)
    	{
    		Name newName = new Name();
    		System.out.println("Please enter a complete name in the following format. \nFirstname Middlename Lastname");
    		getName(newName);
    		Name myName = new Name(newName.getFirstName(), newName.getMiddleName(), newName.getLastName());
    		System.out.println("You entered: ");
    		printNameOut(myName);}
     
    static void getName(Name newName)
    	{
    		Scanner keyboard = new Scanner(System.in);
    		newName.setFirstName(keyboard.next());
    		newName.setMiddleName(keyboard.next());
    		newName.setLastName(keyboard.next());
    		keyboard.nextLine();
    	}
    static void printNameOut(Name printName)
    {
    	System.out.println(printName.getFirstName() + " " +
    			printName.getMiddleName() + " " +
    			printName.getLastName());
    }
    }

    Class Code(can alter this)
    import java.util.Scanner;
    public class Name {
    	Scanner keyboard = new Scanner(System.in);
    	/**
    	 * @param args
    	 */
     
    		private String FirstName;
    		private String MiddleName;
    		private String LastName;
     
    	public Name ()
    		{
     
    		}	
    	public Name ( String FirstName, String MiddleName, String LastName)
    	{
     
     
    	}
    	public String getFirstName ()
    	{
    		return FirstName;
     
    	}
    	public String getMiddleName ()
    	{
    		return MiddleName;
     
    	}
    	public String getLastName ()
    	{
     
    		return LastName;
    	}
    	public void setFirstName (String newName)
    	{
    		FirstName = newName;
    	}
    	public void setMiddleName (String newName)
    	{
    		MiddleName = newName;
    	}
    	public void setLastName (String newName)
    	{
    		LastName = newName;
    		}}

    The output of printNameOut(myName) should be the values input for newName. Instead I'm getting null, null, null. Though if I put the method printNameOut(newName), I get the right values.

  4. #4
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    Default Re: How to get constructed

    Welp, after more looking over my books, I feel pretty stupid, but I think I've solved the immediate problem.

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