Java : Complete Dig up

The main reason behind the static import feature in java5 is to reduce the unnecessary reference of class name to call static methods/fields. package   import.static.test ; import   static   java.lang.Integer.MAX_VALUE ; import   static   java.lang.Integer.MIN_VALUE ; import   static   java.lang.System.out ; public   class  StaticImportExample  {      public   static   void  main ( String  args [])   {                //without Static import          System . out . println ( "Maximum value of int variable in Java without "  + "static import : "   +  Integer . MAX_VALUE ) ;          System . out . println ( "Minimum value of int variable in Java without "  + static import : "  +  Integer . MIN_VALUE ) ;             ...

Reason behind wait method present in Object class: In the Java language, you  wait()  on a particular instance of an  Object  – a monitor assigned to that object to be precise. If you want to send a signal to one thread that is waiting on that specific object instance then you call  notify()  on that object. If you want to send a signal to all threads that are waiting on that object instance, you use  notifyAll()  on that object. If  wait()  and  notify()  were on the  Thread  instead then each thread would have to know the status of every other thread. How would thread1 know that thread2 was waiting for access to a particular resource? If thread1 needed to call  thread2.notify()  it would have to somehow find out that  thread2  was waiting. There would need to be some mechanism for threads to register the resources or actions that they need so others could signal them when stuff was r...