// C++ program for implementation of falling matrix.   #include       #include      #include      #include      #include      #include      // Width of the matrix line   const     int     width     =     70  ;   // Defines the number of flips in Boolean Array 'switches'   const     int     flipsPerLine     =     5  ;   // Delay between two successive line print   const     int     sleepTime     =     100  ;   using     namespace     std  ;   int     main  ()   {      int     i     =     0       x     =     0  ;      // srand initialized with time function      // to get distinct rand values at runtime      srand  (  time  (  NULL  ));      // Used to decide whether to print      // the character in that particular iteration      bool     switches  [  width  ]     =     {  0  };      // Set of characters to print from      const     string     ch     =     '1234567890qwertyuiopasdfghjkl'      'zxcvbnm./';[]!@#$%^&*()-=_+'  ;      const     int     l     =     ch  .  size  ();      // Green font over black console duh!      system  (  'Color 0A'  );      // Indefinite Loop      while     (  true  )      {      // Loop over the width      // Increment by 2 gives better effect      for     (  i     =     0  ;     i      <     width  ;     i     +=     2  )      {      // Print character if switches[i] is 1      // Else print a blank character      if     (  switches  [  i  ])      cout      < <     ch  [  rand  ()     %     l  ]      < <     ' '  ;      else      cout      < <     ' '  ;      }      // Flip the defined amount of Boolean values      // after each line      for     (  i     =     0  ;     i     !=     flipsPerLine  ;     ++  i  )      {      x     =     rand  ()     %     width  ;      switches  [  x  ]     =     !  switches  [  x  ];      }      // New Line      cout      < <     endl  ;      // Using sleep_for function to delay      // chrono milliseconds function to convert to milliseconds      this_thread  ::  sleep_for  (  chrono  ::  milliseconds  (  sleepTime  ));      }      return     0  ;   }   

   import     java.util.Random  ;   public     class   FallingMatrix     {      // Width of the matrix line      static     final     int     width     =     70  ;      // Defines the number of flips in Boolean Array 'switches'      static     final     int     flipsPerLine     =     5  ;      // Delay between two successive line prints      static     final     int     sleepTime     =     100  ;      public     static     void     main  (  String  []     args  )     {      // Used to decide whether to print the character in that particular iteration      boolean  []     switches     =     new     boolean  [  width  ]  ;      // Set of characters to print from      String     ch     =     '1234567890qwertyuiopasdfghjkl'      +     'zxcvbnm./';[]!@#$%^&*()-=_+'  ;      int     l     =     ch  .  length  ();      // Green font over black console      System  .  out  .  print  (  'u001B[32m'  );      // Indefinite Loop      while     (  true  )     {      // Loop over the width      // Increment by 2 gives a better effect      for     (  int     i     =     0  ;     i      <     width  ;     i     +=     2  )     {      // Print character if switches[i] is true      // Else print a blank character      if     (  switches  [  i  ]  )      System  .  out  .  print  (  ch  .  charAt  (  new     Random  ().  nextInt  (  l  ))     +     ' '  );      else      System  .  out  .  print  (  ' '  );      }      // Flip the defined amount of Boolean values after each line      for     (  int     i     =     0  ;     i      <     flipsPerLine  ;     ++  i  )     {      int     x     =     new     Random  ().  nextInt  (  width  );      switches  [  x  ]     =     !  switches  [  x  ]  ;      }      // New Line      System  .  out  .  println  ();      // Delay      try     {      Thread  .  sleep  (  sleepTime  );      }     catch     (  InterruptedException     e  )     {      e  .  printStackTrace  ();      }      }      }   }   

   # Python program for implementation of falling matrix.   import   random   import   time   # Width of the matrix line   width   =   70   # Defines the number of flips in Boolean Array 'switches'   flipsPerLine   =   5   # Delay between two successive line print   sleepTime   =   0.1   # Set of characters to print from   ch   =   '1234567890qwertyuiopasdfghjklzxcvbnm./';[]!@#$%^&*()-=_+'   # Used to decide whether to print   # the character in that particular iteration   switches   =   [  0  ]  *  width   # Indefinite Loop   while   True  :   # Loop over the width   # Increment by 2 gives better effect   for   i   in   range  (  0     width     2  ):   # Print character if switches[i] is 1   # Else print a blank character   if   switches  [  i  ]:   print  (  ch  [  random  .  randint  (  0     len  (  ch  )  -  1  )]   end  =  ' '  )   else  :   print  (  ' '     end  =  ' '  )   # Flip the defined amount of Boolean values   # after each line   for   _   in   range  (  flipsPerLine  ):   x   =   random  .  randint  (  0     width  -  1  )   switches  [  x  ]   =   not   switches  [  x  ]   # New Line   print  ()   # Using sleep function to delay   time  .  sleep  (  sleepTime  )   

   // Importing required modules   const     sleep     =     require  (  'util'  ).  promisify  (  setTimeout  );   // Width of the matrix line   let     width     =     70  ;   // Defines the number of flips in Boolean Array 'switches'   let     flipsPerLine     =     5  ;   // Delay between two successive line print   let     sleepTime     =     100  ;     // in milliseconds   // Set of characters to print from   let     ch     =     '1234567890qwertyuiopasdfghjklzxcvbnm./';[]!@#$%^&*()-=_+'  ;   // Used to decide whether to print   // the character in that particular iteration   let     switches     =     Array  (  width  ).  fill  (  0  );   // Indefinite Loop   async     function     fallingMatrix  ()     {      while     (  true  )     {      // Loop over the width      // Increment by 2 gives better effect      for     (  let     i     =     0  ;     i      <     width  ;     i     +=     2  )     {      // Print character if switches[i] is 1      // Else print a blank character      process  .  stdout  .  write  (  switches  [  i  ]     ?     ch  [  Math  .  floor  (  Math  .  random  ()     *     ch  .  length  )]     +     ' '     :     ' '  );      }      // Flip the defined amount of Boolean values      // after each line      for     (  let     _     =     0  ;     _      <     flipsPerLine  ;     _  ++  )     {      let     x     =     Math  .  floor  (  Math  .  random  ()     *     width  );      switches  [  x  ]     =     !  switches  [  x  ];      }      // New Line      console  .  log  ();      // Using sleep function to delay      await     sleep  (  sleepTime  );      }   }   fallingMatrix  ();