CODEWITHSUNDEEP
javaswingjoptionpane
Anurag Singh
Anurag Singh

Reputation: 727

How to display more than one output using single JOptionPane.showMessageDialog() statement?

How can I display more than one line using JOptionPane.showMessageDialog(). For example, I'm posting an example below. Now, in the example stated below the values a1,b1,c1 have to be displayed one by one using the JOptionPane.showMessageDialog() Is there any way to show all the values in one window? because in the example stated below three windows will come one after one.

class demo()
{
    public static void main(String args[])   
    {
          String a=JOptionPane.showInputDialog(null,"Enter a number");
          int a1=Integer.parseInt(a);
          String b=JOptionPane.showInputDialog(null,"Enter a number");
          int b1=Integer.parseInt(b);

          int c=a1+b1;
          JOptionPane.showMessageDialog(null,a1);
          JOptionPane.showMessageDialog(null,b1); 
          JOptionPane.showmessageDialog(null,c1);
    } 
}

Upvotes: 4

Views: 26714

Answers (4)

Sun Pii
Sun Pii

Reputation: 11

Why not try this:

JOptionPane.showMessageDialog(null,  a1 + "\n" + b1 + "\n" + c1);

Which will print all in three different lines in a dialog.

Upvotes: 1

siegi
siegi

Reputation: 5996

If you want to put every value in a new line you don't need to use a JLabel with HTML or a JTextArea, you can simply use \n in the String:

JOptionPane.showMessageDialog(null, "line1\nline2");

Of course you can simply concatenate your values by adding them with a String:

a1 + "\n" + a2

Upvotes: 6

Nikhar
Nikhar

Reputation: 1074

Why can't you just take all that in a string and use only one JOptionPane.

 int c=a1+b1;
 String s = "a1: "+a1+" b1: "+b1+"c: "+c;
 JOptionPane.showMessageDialog(null,s);

instead of 3 JOptionPane.

Upvotes: 4

Hovercraft Full Of Eels
Hovercraft Full Of Eels

Reputation: 285405

Some ways to solve this:

  • create a JLabel to hold your output and use HTML to allow the display of a multi-lined JLabel, then pass the JLabel as the second parameter of your JOptionPane.showMessageDialog.
  • Or you could create a JTextArea, append your result Strings + "\n" to the JTextArea, and then pass it into the JOptionPane.showMessageDialog method. If you do this, prevent others from editing your JTextArea by calling setEditable(false) on it.

Upvotes: 5

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