// Java program to demonstrate default    // values of array elements   class   ArrayDemo     {      public     static     void     main  (  String  []     args  )      {      System  .  out  .  println  (  'String array default values:'  );      String     str  []     =     new     String  [  5  ]  ;      for     (  String     s     :     str  )      System  .  out  .  print  (  s     +     ' '  );      System  .  out  .  println  (      'nnInteger array default values:'  );      int     num  []     =     new     int  [  5  ]  ;      for     (  int     val     :     num  )      System  .  out  .  print  (  val     +     ' '  );      System  .  out  .  println  (      'nnDouble array default values:'  );      double     dnum  []     =     new     double  [  5  ]  ;      for     (  double     val     :     dnum  )      System  .  out  .  print  (  val     +     ' '  );      System  .  out  .  println  (      'nnBoolean array default values:'  );      boolean     bnum  []     =     new     boolean  [  5  ]  ;      for     (  boolean     val     :     bnum  )      System  .  out  .  print  (  val     +     ' '  );      System  .  out  .  println  (      'nnReference Array default values:'  );      ArrayDemo     ademo  []     =     new     ArrayDemo  [  5  ]  ;      for     (  ArrayDemo     val     :     ademo  )      System  .  out  .  print  (  val     +     ' '  );      }   }