I think what you’re looking for is called a Web Beacon or tracking pixel. A tracking pixel is just a small transparent image embedded in the emails you send out. When your recipients open the email, their client (Gmail, Outlook, etc.) will send a request to download the image. This works the same way that … Read more
It won’t be possible, you have to pass the value you want to set in text view using intent. You have to use intent and pass the value from one activity and get that value in another activity and than set the value to text view. Intent intent1 = new Intent(context, your activity name where … Read more
I assume (It would be better if you post the crash log along with your question, so that we can help you better and stop assuming) you are getting a null pointer exception on the following code: i.putExtra(“temper”, temp.getText().toString()); In your code you declared temp, but it is never initialised. You need to initialise temp … Read more
Find below a small snippet which does what you want to achieve. For demonstration purpose it also generates some example directories and files. import java.io.File; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.Date; import java.util.Optional; import static java.util.concurrent.TimeUnit.MINUTES; public class FindRecentFileRecursively { public static void main(String[] args) throws IOException { // create some … Read more
You should create your array as a static variable rather than a local variable. public class State { private static String[] info = new String[5]; public static void store(State state) { info[0] = … } … } Another better option is to create State as Concrete class rather than a Static class, but you should … Read more
It may be at early binding, since polymorphism is used while coding to assign a reference variable to other variable of a a superclass or interface of itself. solved When does polymorphism occur [closed]
The first one won’t have any output since the stdout stream wasn’t flushed by a newline (or a manual call). In Java, the method called is println, so it’s adding a newline at the end of the string, causing the stream to flush. solved What output of the both program is different?
try this code int sum = 0; for(int i = 0; i <=dailyList.size(); i++) { dailyExerciseID = dailyList.get(i).getDcExerciseId(); dailyExerciseName = dailyList.get(i).getDcexerciseName(); points = dailyList.get(i).getPoints(); sum = sum + points; } 0 solved How can I get all sum of data from arraylist in a for loop?
try{ String url = “https://SERVER-ADDRESS:PORT/site/login?username=” + user + “&password=” + password; HttpParams params = new BasicHttpParams(); HttpConnectionParams.setConnectionTimeout(params, 1000 * 60 * 2); HttpConnectionParams.setSoTimeout(params, 0); HttpClient httpClient = new DefaultHttpClient(params); //prepare the HTTP GET call HttpGet httpget = new HttpGet(url); //get the response entity HttpEntity entity = httpClient.execute(httpget).getEntity(); if (entity != null) { //get the response … Read more
(1) What’s the meaning of this? The method f is using instanceof as it is not use polymorphic methods to select the right type. Can you be more specific as to what you don’t understand. (2) How to call “yellow”? I assume you want is to retrieve the String in the field in dog with … Read more
return true is only executed if the if condition is true. For all other cases you need the return false 0 solved Why 2 return statements are mandatory in equals method
You can’t. To call any non-static method of some class A, you need an instance of A or of a subclass of A, as such a method typically operates on data within such an instance. That’s at the very core of what “object-oriented” is all about. In your case, A is abstract and can’t have … Read more
The UserSettings class has a constructor that looks like this: public UserSettings(ArrayList<User> mUser, ArrayList<UserAccountSettings> mSettings){ } This constructor doesn’t set the user and settings variables defined in this class and it is the constructor you use to create the return value of the getUserSettings method. return new UserSettings(mUser, mSettings ); // `mUser` and `mSettings` are … Read more
i am not a expert in java. But i think reversing the increment and decrement value of start and end will solve your issue. ++start; –end; 1 solved Checking the string palindrome or not
The first thing I want to tell you is that a Salesforce developer need not necessarily work for Salesforce. Like myself, I work on the Salesforce platform, I develop Visualforce pages and code in Apex language for a living. And I do not work for the company “Salesforce” aka SFDC. Salesforce is a company who … Read more