The scala lazy keywords

scala lazy generally inside a keyword used for in front of a variable, so that this variable is represented by a variable inert

day02 Package Penalty for 

/ ** 
* Lazy using the scala-defined variables called variable inertia, lazy loading will be achieved, and that is not performed at compile time, 
* variables can only be inert immutable variable, and only when calling inert variable, only to instantiate this variable. 
* / 

Object ScalaLazyDemo1 { 

  DEF the init (): Unit = { 
    the println ( "Call the init () ...") 
  } 

  DEF main (args: the Array [String]): Unit = { 
    Val Property = the init () // no use Lazy modifying
     the println ( "After the init ()") 
    (Property) the println 
  } 

} 

// execution result 
/ * 
Call the init () ... 
After the init () 
() 
* / 

Object ScalaLazyDemo2 { 

  DEF the init (): Unit = { 
    the println ( "Call the init () ...") 
  } 

  DEF main (args: the Array [String]): Unit = { 
    the lazy = Val Property the init () // modified with Lazy
    the println ( "After the init ()") 
    the println (Property) 
  } 

} 
/ * 
execution result 
After the init () 
Call the init () ... 
() 
* /