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Thread: Where did I mess up?

  1. #1
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    Default Where did I mess up?

    // CIS 226 Ch 2 Welcome to CIS 226
    	// Assign2 - Create a program which prompt user to enter first and last name and a welcome message is displayed. 
    	// Riter Heng - 2/16/2012
     
    // for Extra Credit
     
     
    import javax.swing.JOptionPane;
     
    public class Assign2 
    {
     
     
    	public static void main(String[] args) 
    	{
    		//System.out.println("Welcome to CIS 226!");
    		//System.out.println("..");
    		//System.out.println(("..\n..");
    		//System.out.printf("%s\n%s\n", "..", "..");
     
     
    		String firstName = JOptionPane.showInputDialog("Please enter your first name:");
    		//if (firstName != null) {}
    		//else {System.exit(0);}
     
    		String lastName = JOptionPane.showInputDialog("Please enter your last name:");
    		if((firstName != null) || (lastName != null))
     
    		JOptionPane.showMessageDialog(null, "Hello, " + firstName +"  " + lastName + ", " +
    									"\n Welcome to CIS 226", "Message" , 0);
    		else {JOptionPane.showMessageDialog(null, "Sorry, you have enter your name to enroll into CIS 226.", "Error", JOptionPane.ERROR_MESSAGE);}
     
     
    	   } // end method main
    }// end class Assign2

    Okay so I was working with a classmate and he sorta left in the middle to go somewhere and I was left trying to figure out his coding. The program is suppose to give an error when you click cancel instead of not entering a first or last name. But it doesn't give that error and just skips on over and ends up at the "hello firstName Last Name, Welcome to CIS 226." Also when I ran it on the "hello..." I get a red cross as the icon but I need a "i", how do I fix that?


  2. #2
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    Default Re: Where did I mess up?

    The problem seems to be on the following lines:

    ...edited by moderator

    So whenever the user click the cancel button the program will show the error message and then it exit.

    My first post here. I hope it answers your question.
    Last edited by copeg; February 17th, 2012 at 09:12 AM.

  3. #3
    Super Moderator copeg's Avatar
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    Default Re: Where did I mess up?

    @Sevv, please read the forum rules as well as the following:
    The Problem with Spoon-feeding

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    Default Re: Where did I mess up?

    I had problems dealing with this exception: try/catch Statement | Example Depot
    Go here and read up on it.

    tl/dr use a try/catch statement

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