anjanashankar9

public static List watchedGetChildren(CuratorFramework client, String path) throws Exception { 
  return client.getChildren()
    .usingWatcher(new WatcherImpl(client,path))
    .forPath(path);
}

anjanashankar9

public static String getData(CuratorFramework client, String path) throws Exception{ 
  String str = new String(client.getData()
                          .usingWatcher(new WatcherImpl(client,path))
                          .forPath(path)); 
  return str;
}

anjanashankar9

public class WatcherImpl implements Watcher{
  @Override 
  public void process(WatchedEvent event) {
    if(event.getType() == Event.EventType.NodeDataChanged) {
      System.out.println("The Data has changed"); 
    } 
    else if(event.getType() == Event.EventType.NodeChildrenChanged){
      System.out.println("Children have changed"); 
    }
  }

anjanashankar9

class A {
    //Constructor of A
    A() {
        System.out.println("A's constructor");
    } 
  
    public void method() {
        System.out.println("A's get method");
    }
}

anjanashankar9

class B extends A{
    //Constructor of B
    B(){
        System.out.println("B's constructor");
    }
}

anjanashankar9

public static void main(String[] args) {
    System.out.println("JAVA - INHERITANCE");
    B objectB = new B();
}

anjanashankar9

JAVA - INHERITANCE
A's constructor
B's constructor

anjanashankar9

class B extends A{
    //Constructor of B
    B(){
        System.out.println("B's constructor"); //This is not allowed
        super();
    }
}

anjanashankar9

class B extends A{
    //Constructor of B
    B(){
        super();
    }
}

anjanashankar9

class B extends A{
    //Constructor of B
    B(){
        super();
    }

    @Override
    public void method(){
        System.out.println("B's get method");
        super.method();