Java defines two way to create thread
Extends the Thread class -
// Extend Thread class
class NewThread extends Thread
{
// constructor called when create NewThread Object
NewThread(){
//Create a new thread
super("Thread name");
// start thread and after call start method run method will call automaticaly
start();
}
public void run() // Called when start() called
{
try{
// Do here long running operations
}catch(Exception e){
}
}
}
// Create NewThread Class Object
Thread nThread = new NewThread();
Implement Runnable Interface -
// Extend Thread class
class NewThread implements Runnable
{
// Thread Reference
Thread t;
// Constructor called when create NewThread Object
NewThread(){
// Create a new thread
t = new Thread(this,"Thread name");
// start thread and after call start method run method will call automaticaly
t.start();
}
public void run() // Called when start() called
{
try{
// Do here long running operations
}catch(Exception e){
}
}
}
// Create NewThread Class Object
Thread nThread = new NewThread();
1. Some time required to extends some other class and also want to use thread , In this case we will implements runnable and create thread , beacause we can not extends multiple classes.
2. Otherwise we will extends Thread class and create thread .
Inner class way to create thread without creating class.
public void onClick(View v) {
new Thread(new Runnable() {
public void run() {
// Do here long running operations
final Bitmap bitmap = loadImageFromNetwork("http://example.com/image.png");
}
}).start();
}
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