As long as the method group SomeObject.SomeMethod has a method with return type void and taking no parameters there is no difference. This is because ThreadStart is defined as a delegate that returns void and takes no parameters and therefore there is an implicit conversion from the method group SomeObject.SomeMethod to ThreadStart. Thus, both are … Read more
As others have noted, the identically-named NumPy functions and array methods are often equivalent (they end up calling the same underlying code). One might be preferred over the other if it makes for easier reading. However, in some instances the two behave different slightly differently. In particular, using the ndarray method sometimes emphasises the fact … Read more
Contrary to popular belief, this is possible. See here.
The solution depends on the answer to the question – are all the parameters going to be the same type and if so will each be treated the same? If the parameters are not the same type or more importantly are not going to be treated the same then you should use method overloading: public … Read more
You can use observers , like public class MyReceiver extends BroadcastReceiver { public MyReceiver() { } @Override public void onReceive(Context context, Intent intent) { ObservableObject.getInstance().updateValue(intent); } } public class MainActivity extends Activity implements Observer { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ObservableObject.getInstance().addObserver(this); } @Override public void update(Observable observable, Object data) { Toast.makeText(this, String.valueOf(“activity observer … Read more
You can use the bracket notation to access the member with a string containing the identifier: var target=”next”; $(“foobar”)[target](); // identical to $(“foobar”).next()
If a synchronized method calls another non-synchronized method, is there a lock on the non-synchronized method The answer depends on the context. If you are in a synchronized method for an object, then calls by other threads to other methods of the same object instance that are also synchronized are locked. However calls by other … Read more
objName.GetType().GetProperty(“nameOfProperty”).SetValue(objName, objValue, null)
call is used when you want to control the scope that will be used in the function called. You might want the this keyword to be something else than the scope you assigned the function to, in those cases you can use call or apply to call the function with your own scope. F.ex, it … Read more
The general rule that applies here is this: if one method signature is strictly more specific than the other, then Java chooses it without an error. Intuituively, a method signature is more specific if you could delete it entirely and the other, less specific one would be applicable to each existing invocation. When presented with … Read more