JOptionPane Yes or No window

Question

I am trying to create a message with a Yes or No button   Then a window will appear with a certain message that depends on if the user clicked Yes or No     Here is my code   public class test      public static void main String   args              default icon  custom title         int n   JOptionPane showConfirmDialog              null               Would you like green eggs and ham                 An Inane Question               JOptionPane YES NO OPTION            if true               JOptionPane showMessageDialog null   HELLO                      else               JOptionPane showMessageDialog null   GOODBYE                       System exit 0             Right now it prints HELLO whether or not you press Yes or No   How do I get it to show GOODBYE when the user chooses No

User · Answer

Something along these lines            default icon  custom title int n   JOptionPane showConfirmDialog null  Would you like green eggs and ham    An Inane Question  JOptionPane YES NO OPTION    String result        switch  n    case JOptionPane YES OPTION    result    YES     break  case JOptionPane NO OPTION    result    NO     break  default        System out println  Replace      result     you may also want to look at DialogDemo

User · Answer

if true   will always be true and it will never make it to the else  If you want it to work correctly you have to do this   int reply   JOptionPane showConfirmDialog null  message  title  JOptionPane YES NO OPTION   if  reply    JOptionPane YES OPTION        JOptionPane showMessageDialog null   HELLO      else       JOptionPane showMessageDialog null   GOODBYE        System exit 0

User · Answer

You are always checking for a true condition  hence your message will always show   You should replace your if  true  statement with if   n    JOptionPane YES OPTION      When one of the showXxxDialog methods returns an integer  the possible   values are       YES OPTION NO OPTION CANCEL OPTION OK OPTION CLOSED OPTION   From here

User · Answer

For better understand how it works      int n   JOptionPane showConfirmDialog null   Yes No Cancel    YesNoCancel   JOptionPane YES NO CANCEL OPTION       if n    0                    JOptionPane showConfirmDialog null   You pressed YES n   Pressed value is     n                 else if n    1                    JOptionPane showConfirmDialog null   You pressed NO n   Pressed value is     n                 else if  n    2                    JOptionPane showConfirmDialog null   You pressed CANCEL n   Pressed value is     n                 else if  n    -1                    JOptionPane showConfirmDialog null   You pressed X n   Pressed value is     n               OR  int n   JOptionPane showConfirmDialog null   Yes No Cancel    YesNoCancel   JOptionPane YES NO CANCEL OPTION       switch  n            case 0              JOptionPane showConfirmDialog null   You pressed YES n   Pressed value is     n               break          case 1              JOptionPane showConfirmDialog null   You pressed NO n   Pressed value is     n               break          case 2              JOptionPane showConfirmDialog null   You pressed CANCEL n   Pressed value is     n               break          case -1              JOptionPane showConfirmDialog null   You pressed X n   Pressed value is     n               break          default              break

User · Answer

You can fix it with this   if n    JOptionPane YES OPTION        JOptionPane showMessageDialog null   HELLO      else       JOptionPane showMessageDialog null   GOODBYE

User · Answer

You are writing if true  so it will always show  Hello   message   You should take decision on the basis of value of n returned

User · Answer

Code for Yes and No Message        int n   JOptionPane showConfirmDialog                    null                   sample question                                          JOptionPane YES NO OPTION          if n    JOptionPane YES OPTION                    JOptionPane showMessageDialog null   Opening                     else                   JOptionPane showMessageDialog null   Goodbye              System exit 0

User · Answer

You can do this a whole simpler   int test   JOptionPane showConfirmDialog null   Would you like green eggs and ham     An insane question     switch test        case 0  JOptionPane showMessageDialog null   HELLO       Yes option     case 1  JOptionPane showMessageDialog null   GOODBYE       No option     case 2  JOptionPane showMessageDialog null   GOODBYE       Cancel option

[java] JOptionPane Yes or No window

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