Q&A Discussions

java.lang.NullPointerException

29th Sep 2016, 11:00 PM

Karoy

classes exceptions java oop threads

1 Vote

Caused by: java.lang.IllegalArgumentException: column '_id' does not exist. Available columns: [RaagName]

13th May 2020, 4:44 AM

Mouad Taoussi

android assetfolder java sqlite threads

-1 Vote

How to use threading in java ? Let me ask a question!??

2nd May 2022, 6:41 PM

Chinmayi Dongre

java problem programming solution threads

2 Votes

Set the text of a label - WinForms [SOLVED]

29th Oct 2017, 10:06 AM

Pranesh Palanisamy

c#exceptions forms label thread threads winform winforms

3 Votes

Why is the java Thread.interrupted method static?

16th Jun 2019, 10:31 PM

Oliver

interrupted interrupts java static threads

1 Vote

What is the most difficult-to-learn easy-to-master language at the moment

2nd Feb 2022, 7:31 PM

TOBI.ON

difficult easy master scripting-languages self-learning sololearn threads

1 Vote

Android app shows java error upon opening

17th Jul 2018, 5:05 PM

Shrimp

android error exceptions java linkedlist lists stack stacktrace threads trace

0 Votes

11 Answers

7th Jul 2021, 3:12 PM

Katz321Juno

i/o java advanced

i/o input inputstream iostream java output threads

2 Votes

Why doesn't my << overloader work? And I am having problems understanding how to use std::async in C++.

26th Jun 2021, 11:22 AM

Mehran

async c++error mutex optimization performance std::async threads

-2 Votes

Why isn't working properly??

10th Jun 2021, 4:46 AM

Purple Requiem

function-arguments functions loops print python sleep threads time while

0 Votes

Thread class vs Runnable interface

22nd Jan 2022, 5:31 PM

Ravi King

classes inheritance interfaces java threads

1 Vote

8th Nov 2016, 12:47 PM

Islay

Heap memory in java

hack heap java objects threads

0 Votes

How much Java do I need to know for Android?

7th Oct 2017, 1:18 PM

Amir Masoud Mostofinejad

android files generics java threads

0 Votes

Explain Life cycle of thread?

21st Jan 2017, 8:00 PM

Shubham Jain

block dead example java run runnable threads

0 Votes

4 Answers

28th Aug 2017, 3:09 PM

Sreejith P

SRC in javascript and href in css

attributes css css3 html html5 javascript src threads

0 Votes

4 Answers

13th Mar 2019, 8:10 AM

Tan Fu Yu

Is there a way to organize the "Activity Feed"-Section?

activity app feed functions options section sololearn threads

2 Votes

2nd May 2019, 3:30 PM

Chris Schoellen

Python Input project

automatic display input library python3 subprocess threads

1 Vote

What is the Difference between Scanner class and BufferReader class ?

3rd Mar 2018, 3:15 PM

Brian

abstract-classes classes files inheritance input instance iostream threads

2 Votes

[C#] "Cannot access object, because another thread owns it."

18th Jan 2017, 10:01 AM

amit umbarkar

access c#dictionaries object static threads uncommon wpf

0 Votes

4 Answers

28th Nov 2016, 3:49 PM

Magyar Dávid

There must be an easier way to interrupt loops! Or do I really have to use multi threading?

infinite interrupt loops python threads while

0 Votes

Why is thread.sleep() ..as i have heard....harmful....then what is its alternate... the java.util.concurrent ... or any other ?

19th Oct 2016, 7:16 PM

Julian

info java java.util.concurrent required thread.sleep()threads

0 Votes

1st Oct 2017, 2:58 AM

parth

Game creating

c++code games html html5 methods python sololearn threads video

0 Votes

anchor background basics dynamics javascript progress python self-learning threads website

26th May 2020, 10:03 PM

Oli Turcotte

Project vs product

1 Vote

Why is there an object as an argument in this multi-thread example?

1st Jul 2024, 7:08 AM

Indrajeet

argument java method multithreading object run runnable start thread threads

1 Vote

how to store the value set by user on JScrollBar and use it later for some calculations ?

26th May 2019, 11:17 PM

Roger Wang

awt constructors events exceptions java jscrollbar scrollbar swing threads

0 Votes

Is there any IDE that can combine one or more language. Or combine them with some sort of limkers?!?.

6th Feb 2021, 5:56 AM

Sk. Ahmed Razha Khan

beginners c++code codeplayground java programming python python3 ruby threads

1 Vote