[resolvido]

public static void main(String args[])
{
	int min = Integer.parseInt(JOptionPane.showInputDialog(null, "Digite o valor minimo"));
	int max = Integer.parseInt(JOptionPane.showInputDialog(null, "Digite o valor maximo"));
	
	do
	{
		System.out.println(min + " < " + max);
		
		min++;
		max--;		
	}
	while (min < max);
	
	System.out.println(min + " < " + max + " -> Condicao invalida!");	
}