A good memory is better than a bad pen. 74-multithreading-multithreading for runnable interfaces

We can implement multithreading by inheriting class thread or implementing the Runnable interface. If you have a class that inherits a class and wants to implement multi-threading, you can implement the Runnable interface.
The run () function must be overwrite and put the code that will be processed in parallel in multiple threads into this function.
A thread object is generated as a parameter to an object that implements the Runnable interface, and then the start () function of the thread object is called to perform parallel operations.
For example:
Easyrunnablethread thread2 = new Easyrunnablethread ();
New Thread (Thread2). Start ();
If the developer calls the run () method directly, it will be executed as a normal serial program, rather than multithreaded.

Java source code for the implementation of simple multithreading

 PackageCom.thread;/** * A simple multi-threaded implementation of the Runnable interface * * @author Fan Fangming */ Public  class easyrunnablethread implements Runnable {    inti =0, j =0, k=0;intFlag =0; Public void Run() {//Let the system run 6 times, in order to observe the results can be         for(intCount =0; Count <6; Count + +) {Try{Thread.Sleep ( -); }Catch(Exception e)            {E.printstacktrace (); }if(Flag = =0) {i++; System.out.println ("i="+ i); }Else if(Flag = =1) {j + +; System.out.println ("b Split point: j="+ j); }Else{k++; System.out.println ("C Split point: k="+ k); }        }    } Public Static void Main(string[] args) {Easyrunnablethread Thread1 =NewEasyrunnablethread (); Thread1.flag =0;//Do not call the Run method directly, otherwise it will be treated as a normal serial thread        //thread1.run ();        NewThread (Thread1). Start (); Easyrunnablethread thread2 =NewEasyrunnablethread (); Thread2.flag =1;NewThread (Thread2). Start (); Easyrunnablethread thread3 =NewEasyrunnablethread (); Thread3.flag =2;NewThread (THREAD3). Start (); }}

Run Results
C Split point: k=1
B Split point: J=1
I=1
B Split point: j=2
i=2
C Split point: k=2
B Split point: j=3
C Split point: k=3
I=3
B Split point: j=4
I=4
C Split point: k=4
B Split point: j=5
I=5
C Split point: k=5
I=6
C Split point: k=6
B Split point: j=6

Similarly, if we call the Run method directly in class, it will also be called as a normal serial method, rather than a multi-threaded operation.

A good memory is better than a bad pen. 74-multithreading-multithreading for runnable interfaces