Multithreaded programming, Java graphical user interface programming, Java I/O systems

Threading Overview

Process: is a "self-containment" running program

Threads are a concept in a process, with minimal processing units

Thread class, Runnable interface, object class

There are two ways to create a new thread of execution: 1: One method is to declare a class as a thread subclass, which is the thread class of the Run method

Start: Adjust Start () method

Write a class that inherits the class, and then override the run () method of the thread class in the class

Write an implementation runnable interface, and then use the instance of the class with Java. Lang. Thread objects are linked together

char can convert int (4 bytes), int casts char (2 bytes);

Class name. Activecount Number of threads

The class name. GetPriority (); Get priority

Thread. Sleep (number of seconds), sleep control

Synchronized: Stepping, is locked in his object

Yield () Method: Stop Running

Notify (); notification wakeup

Java Collection Classes Overview

JCF Framework: He provides the data for managing collections

Set: No order, element cannot be duplicated

List: In order, can be repeated

Add Remove: Delete get: Read data set: Correcting data

Next (); Get method

Generics: Safeguard the security of the collection type;

Size: Gets the collection length

Map interface: unordered

map< type, type > map = new hashmap< type, type > ();

Multithreaded programming, Java graphical user interface programming, Java I/O systems