Oracle Certificaiton and Exams

Creating Regular Directories The Files class provides two methods to create regular directories. The create-Directory() method fails to create a… Read more

Notified Invoking the notify() method on an object wakes up a single thread that is waiting for the lock of… Read more

Interrupted This means that another thread invoked the interrupt() method on the waiting thread. The awakened thread is enabled as… Read more

Joining A thread can invoke the overloaded method join() (from the Thread class) on another thread in order to wait… Read more

22.1 Threads and Concurrency We first look at some basic concepts before diving into multithreaded programming in Java. Multitasking Multitasking… Read more

Blocking for I/O A running thread, on executing a blocking operation requiring a resource (like a call to an I/O… Read more

Deprecated Thread Methods There are a few operations defined by the Thread class that are not recommended for use and… Read more

Listing the Immediate Entries in a Directory A common file operation is to list the entries in a directory, similar… Read more

Walking the Directory Hierarchy The walk() method of the Files class creates a stream to walk or traverse the directory… Read more

Limiting Traversal by Depth Specification The walk() method at (4) in Example 21.5 is called multiple times in the for(;;)… Read more