Help with a Java code Post: 302884285

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Top Forums Programming Help with a Java code Post 302884285 by faizlo on Sunday 19th of January 2014 10:16:28 PM

01-19-2014

Registered User

Help with a Java code

Hi all

I am currently learning Java (and Fortran!) on my own. I have written the following code but for some reason it does not work as it should

Code:

import javax.swing.JOptionPane;
class evenOdd {
    public static void main(String[] args) {
        String number, ans;
        int num;
        do {
        number = JOptionPane.showInputDialog(null, "Enter a number (int)", "Even or Odd?", JOptionPane.QUESTION_MESSAGE);
        num = Integer.parseInt(number);
        if (num%2 == 1)
            JOptionPane.showMessageDialog(null, "The number is Odd", "Even or Odd!", JOptionPane.INFORMATION_MESSAGE);
        else
            JOptionPane.showMessageDialog(null, "The number is even", "Even or Odd!", JOptionPane.INFORMATION_MESSAGE);
        ans = JOptionPane.showInputDialog(null, "Do you want to try again? (yes/no)", "Try Again?", JOptionPane.QUESTION_MESSAGE);
        } while (ans == "yes");
    }
}

I have changed the code a little so the user will answer the last question via numbers (1/0) and it worked as it should. Here is the changed version of the code:

Code:

import javax.swing.JOptionPane;
class evenOdd {
    public static void main(String[] args) {
        String number, answer;
        int num, ans;
        do {
            number = JOptionPane.showInputDialog(null, "Enter a number (int)", "Even or Odd?", JOptionPane.QUESTION_MESSAGE);
        num = Integer.parseInt(number);

        if (num%2 == 1)
            JOptionPane.showMessageDialog(null, "The number is Odd", "Even or Odd!", JOptionPane.INFORMATION_MESSAGE);
        else
            JOptionPane.showMessageDialog(null, "The number is even", "Even or Odd!", JOptionPane.INFORMATION_MESSAGE);

        answer = JOptionPane.showInputDialog(null, "Do you want to try again? (1/0)", "Try Again?", JOptionPane.QUESTION_MESSAGE);
        ans = Integer.parseInt(answer);
        } while (ans == 1);
    }
}

I will appreciate any help to understand this issue.

~faizlo

faizlo

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jconsole

jconsole(1)						      General Commands Manual						       jconsole(1)

NAME

       jconsole - J2SE Monitoring and Management Console

SYNOPSIS

       jconsole [ options ] [ pid | [ host:port ...  ] ]

PARAMETERS

       pid	      Process  ID of a Java VM that was started with -Dcom.sun.management.jmxremote option on the same machine. See JMX Monitoring
		      and Management for details at http://java.sun.com/j2se/1.5.0/docs/guide/management/agent.html.

       host:port      Host name on which the Java VM is running and the port number through which the Java VM's JMX Connector is  published.   See
		      JMX Monitoring and Management for details at http://java.sun.com/j2se/1.5.0/docs/guide/management/agent.html.

DESCRIPTION

       The  jconsole  command launches a graphical console tool that enables you to monitor and manage Java applications and virtual machines on a
       local or remote machine.

       NOTE- This tool is experimental and may not be available in future versions of the JDK.

OPTIONS

       -interval=n    Set the update interval to n seconds (default is 4 seconds)

       -notile	      Do not tile windows initially (for two or more connections)

       -version       Output version information abd exit.

       -help	      Output help message and exit.

SEE ALSO

       Monitoring and Management for Java Platform at http://java.sun.com/j2se/1.5.0/docs/guide/management/index.html

								    06 Feb 2004 						       jconsole(1)

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