// Introduce String.
class StringDemo
{
  public static void main(String[] args)
  {
    // declare strings in various ways
    String str1 = new String("Java strings are objects.");
    String str2 = "They are constructed various ways.";
    String str3 = new String(str2);

    System.out.println(str1);
    System.out.println(str2);
    System.out.println(str3);
  }
}