Como adicionar ícone na janela

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 */

package aplicacao;


import javax.swing.*;


/**
 *
 * @author John-Henrique
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        
        janela();
    }

    
    public static void janela() {
        
        JLabel rotulo = new JLabel();
        
        JFrame meuFrame = new JFrame( "Nome da janela" );
        
        JDesktopPane painelDesktop = new JDesktopPane();
        
        meuFrame.add( painelDesktop );
        
        
        /**
         * Adicionando o ícone
         */
        ImageIcon iconePersonalizado = new ImageIcon( "images/icone.gif" );
        meuFrame.setIconImage( iconePersonalizado.getImage() );
        
        
        /**
         * Janela interna
         */
        JInternalFrame janelaInterna = new JInternalFrame();
        
        janelaInterna.setClosable( false );
        janelaInterna.setIconifiable( false );
        janelaInterna.setResizable( false );
        janelaInterna.setTitle( "Janela Interna" );
        janelaInterna.setFocusable( true );
        
        
        painelDesktop.add( janelaInterna );
        
        
        janelaInterna.setVisible( true );
        janelaInterna.setSize( 400, 500 );
        janelaInterna.setLocation(300,300);
        
        meuFrame.setSize( 800, 600 );
        meuFrame.setVisible( true );
        
        
        
        
        
    }
}