// Fig. 10.8: StringConcatenation.java
// This program demonstrates the String class concat method.
// Note that the concat method returns a new String object. It
// does not modify the object that invoked the concat method.

// Java extension packages
import javax.swing.*;

public class StringConcatenation {

   // test String method concat
   public static void main( String args[] )
   {
      String s1 = new String( "Happy " ),
             s2 = new String( "Birthday" );

      String output = "s1 = " + s1 + "\ns2 = " + s2;

      output += "\n\nResult of s1.concat( s2 ) = " +
         s1.concat( s2 );

      output += "\ns1 after concatenation = " + s1;

      JOptionPane.showMessageDialog( null, output,
         "Demonstrating String Method concat",
         JOptionPane.INFORMATION_MESSAGE );

      System.exit( 0 );
   }

}  // end class StringConcatenation

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