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How to get thread id from a thread pool?
...rily start from 0 or 1.
Here is an example matching the question:
import java.util.concurrent.*;
class ThreadIdTest {
public static void main(String[] args) {
final int numThreads = 5;
ExecutorService exec = Executors.newFixedThreadPool(numThreads);
for (int i=0; i<10; i++) {
...
How to override equals method in Java
I am trying to override equals method in Java. I have a class People which basically has 2 data fields name and age . Now I want to override equals method so that I can check between 2 People objects.
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How do I pass parameters to a jar file at the time of execution?
...
To pass arguments to the jar:
java -jar myjar.jar one two
You can access them in the main() method of "Main-Class" (mentioned in the manifest.mf file of a JAR).
String one = args[0];
String two = args[1];
...
WhatsApp API (java/python) [closed]
I am looking for WhatsApp API, preferably a Python or Java library.
5 Answers
5
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What's the difference between JPA and Spring Data JPA?
...PA and JPA. I know about JPA that it is a specification for persisting the Java Objects to a relational database using popular ORM technology.
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HTTP POST using JSON in Java
I would like to make a simple HTTP POST using JSON in Java.
11 Answers
11
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Is it possible to assign numeric value to an enum in Java?
Is anything like this possible in Java? Can one assign custom numeric values to enum elements in Java?
5 Answers
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Java ArrayList - how can I tell if two lists are equal, order not mattering?
...ollections4.CollectionUtils
public static boolean isEqualCollection(java.util.Collection a,
java.util.Collection b)
Returns true iff the given Collections contain exactly the same
elements with exactly the same cardinalities.
That is, if...
How can I combine two HashMap objects containing the same types?
...more control over how values are combined, you can use Map.merge, added in Java 8, which uses a user-provided BiFunction to merge values for duplicate keys. merge operates on individual keys and values, so you'll need to use a loop or Map.forEach. Here we concatenate strings for duplicate keys:
m...
How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
...hard coded timeout value of 10 seconds,
if timeout has reached - throw the java.util.concurrent.TimeoutException and kill the process.
Now consider the following scenario:
Application runs along doing its thing.
This is not a user facing application, it runs in the background.
During this backg...