Most voted questions in Java

0 votes
1 answer

Lazy Initialization Error in Java

What is wrong here is that your ...READ MORE

Jan 14, 2019 in Java by developer_1
 • 3,320 points • 2,168 views
0 votes
0 answers

Can anyone explain Autowiring in Spring ?

Say I have a service class called UserServiceImpl that ...READ MORE

Jan 11, 2019 in Java by Sushmita
 • 6,910 points • 518 views
0 votes
1 answer

What is Eclipse Clean Mode ?

What it does: if set to "true", any ...READ MORE

Jan 11, 2019 in Java by developer_1
 • 3,320 points • 11,187 views
0 votes
3 answers

How autowiring works in Spring?

First, and most important - all Spring ...READ MORE

Jan 11, 2019 in Java by developer_1
 • 3,320 points • 18,020 views
0 votes
1 answer

How can we run eclipse in clean mode? and what will happen if we do so?

if set to "true", any cached data ...READ MORE

Jan 11, 2019 in Java by Daisy
 • 8,120 points • 2,969 views
0 votes
1 answer

Unable to Run the .java file

You have to enter the commands as ...READ MORE

Jan 11, 2019 in Java by Omkar
 • 69,210 points • 617 views
0 votes
1 answer

How to resolve 'Must Override a Superclass Method' Errors after importing a project into Eclipse ?

Eclipse is defaulting to Java 1.5 and ...READ MORE

Jan 10, 2019 in Java by developer_1
 • 3,320 points • 3,933 views
0 votes
1 answer

Xml to Json Conversion

To convert XML File in to JSON ...READ MORE

Jan 10, 2019 in Java by developer_1
 • 3,320 points • 2,093 views
0 votes
1 answer

Exception Handling: “ConcurrentModificationException” while removing elements from `ArrayList` while iterating it

Iterator<String> iter = myArrayList.iterator(); while (iter.hasNext()) { ...READ MORE

Jan 10, 2019 in Java by Sushmita
 • 6,910 points • 591 views
0 votes
1 answer

Comparing Functions in Java

I would suggest that Version 1 is ...READ MORE

Jan 9, 2019 in Java by developer_1
 • 3,320 points • 363 views
0 votes
1 answer

Method for escaping HTML in Java

242 StringEscapeUtils from Apache Commons Lang: import static org.apache.commons.lang.StringEscapeUtils.escapeHtml; // ... String source ...READ MORE

Jan 9, 2019 in Java by developer_1
 • 3,320 points • 4,066 views
0 votes
1 answer

How to convert a date string to a DateTime object using Joda Time library?

DateTimeFormatter formatter = DateTimeFormat.forPattern("dd/MM/yyyy HH:mm:ss"); DateTime dt = ...READ MORE

Jan 9, 2019 in Java by Daisy
 • 8,120 points • 1,943 views
0 votes
1 answer

How can we compare objects by multiple fields in Java?

You can implement a Comparator which compares two Person objects, and ...READ MORE

Jan 9, 2019 in Java by Daisy
 • 8,120 points • 3,689 views
0 votes
1 answer

Can I help with the gradle code for AspectJ?

You can go to maven repositories https://mvnrepository.com/artifact/org.aspectj/aspectjtools/1.9.2 ...READ MORE

Jan 9, 2019 in Java by Frankie
 • 9,830 points • 1,206 views
0 votes
1 answer

Where do we get the maven dependency code for Spring Beans?

Don't worry, you can just go through ...READ MORE

Jan 9, 2019 in Java by Frankie
 • 9,830 points • 2,053 views
0 votes
1 answer

How to solve this error: No Persistence provider for EntityManager named

After <persistence-unit name="agisdb">, define the persi ...READ MORE

Jan 8, 2019 in Java by Daisy
 • 8,120 points • 18,491 views
0 votes
1 answer

How can I solve this: To prevent a memory leak, the JDBC Driver has been forcibly unregistered

What can you do? Ignore these warnings. Tomcat ...READ MORE

Jan 8, 2019 in Java by Daisy
 • 8,120 points • 30,449 views
0 votes
2 answers

Why it is not possible to define a static method in a Java interface?

Interfaces are concerned with polymorphism which is ...READ MORE

Aug 27, 2019 in Java by Sirajul
 • 59,230 points • 1,600 views
0 votes
1 answer

How can I run test methods in specific order in JUnit4?

@FixMethodOrder(MethodSorters.NAME_ASCENDING) public class SampleTest { ...READ MORE

Jan 7, 2019 in Java by Daisy
 • 8,120 points • 1,076 views
0 votes
1 answer

simple HTTP server in Java using only Java SE API

The com.sun.net.httpserver solution is not portable across JREs. Its ...READ MORE

Jan 4, 2019 in Java by Daisy
 • 8,120 points • 2,180 views
0 votes
1 answer

“Unable to load native-hadoop library for your platform” warning: How to resolve it?

If you are running Hadoop on 64bit CentOS, ...READ MORE

Jan 4, 2019 in Java by Daisy
 • 8,120 points • 2,181 views
0 votes
1 answer

How to include jars in classpath using command line?

I have tried the following and it's ...READ MORE

Jan 3, 2019 in Java by Daisy
 • 8,120 points • 8,478 views
0 votes
1 answer

How to set JDK in Eclipse?

To manage the list of compilers go ...READ MORE

Jan 3, 2019 in Java by Daisy
 • 8,120 points • 26,716 views
0 votes
1 answer

How to specify the certificate to use for authenticating the server to client?

You can try the command given below. System.setProperty("javax.net ...READ MORE

Jan 2, 2019 in Java by Daisy
 • 8,120 points • 1,106 views
0 votes
1 answer

What is the need to override the equals and hashCode methods in Java?

You must override hashCode() in every class ...READ MORE

Jan 2, 2019 in Java by Daisy
 • 8,120 points • 2,895 views
0 votes
2 answers

How to ignore exception in Java?

There is no way to basically ignore a ...READ MORE

Aug 16, 2019 in Java by Sirajul
 • 59,230 points • 11,982 views
0 votes
2 answers

Unfortunately MyApp has stopped. How do I solve this?

The common solution for solving App has ...READ MORE

Mar 6, 2019 in Java by AllisonE
 • 180 points • 774 views
0 votes
1 answer

Why is my Spring @Autowired field null?

If you are not coding a web ...READ MORE

Dec 27, 2018 in Java by Daisy
 • 8,120 points
edited Mar 4, 2022 by Sarfaraz • 18,196 views
0 votes
1 answer

Getting error 404 not found when trying to download JDK

Try this command, it should work: wget --no-check-certificate ...READ MORE

Dec 26, 2018 in Java by Omkar
 • 69,210 points • 2,901 views
0 votes
1 answer

Is there any difference between ConcurrentHashMap and Collections.synchronizedMap?

ConcurrentHashMap: It allows concurrent modification of the ...READ MORE

Dec 26, 2018 in Java by Sushmita
 • 6,910 points • 918 views
0 votes
1 answer

GSON throwing “Expected BEGIN_OBJECT but was BEGIN_ARRAY”?

This will work: ChannelSearchEnum[] enums = gson.fromJson(yourJson, ChannelSearchEnum[].class); But ...READ MORE

Dec 26, 2018 in Java by Sushmita
 • 6,910 points • 27,939 views
0 votes
1 answer

Why doesn't RecyclerView have onItemClickListener()?

I like this way and I'm using ...READ MORE

Dec 21, 2018 in Java by Daisy
 • 8,120 points • 789 views
0 votes
1 answer

Java and SQLite

The wikipedia lists some more wrappers: A good tutorial ...READ MORE

Dec 21, 2018 in Java by Daisy
 • 8,120 points • 615 views
0 votes
1 answer

Http Basic Authentication in Java using HttpClient?

String encoding = Base64Encoder.encode ("test1:test1"); HttpPost httppost = ...READ MORE

Dec 20, 2018 in Java by Daisy
 • 8,120 points • 3,650 views
0 votes
1 answer

How to set margins in a LinearLayout programmatically?

LinearLayout ll = new LinearLayout(this); ll.setOrientation(LinearLayout.VERTICAL); LinearLayout.LayoutParams layoutParams = ...READ MORE

Dec 20, 2018 in Java by Daisy
 • 8,120 points • 11,263 views
0 votes
1 answer

Under what conditions is a JSESSIONID created?

JSESSIONID cookie is created/sent when session is ...READ MORE

Dec 18, 2018 in Java by Daisy
 • 8,120 points • 3,657 views
0 votes
1 answer

What is @ModelAttribute in Spring MVC?

@ModelAttribute refers to a property of the ...READ MORE

Dec 18, 2018 in Java by Daisy
 • 8,120 points • 3,189 views
0 votes
1 answer

Setting $PATH as used by applications in OS X

That's correct; it's in the plist file ~/.MacOSX/environment.plist It ...READ MORE

Dec 17, 2018 in Java by nirvana
 • 3,130 points • 677 views
0 votes
1 answer

Getting A File's Mime Type In Java

In Java 7 you can now just ...READ MORE

Dec 14, 2018 in Java by Daisy
 • 8,120 points • 702 views
0 votes
1 answer

How can we override back button to act like home button?

Most of the time you need to ...READ MORE

Dec 14, 2018 in Java by Daisy
 • 8,120 points • 2,040 views
0 votes
1 answer

HashMap with multiple values under the same key

Use a map that has a list ...READ MORE

Dec 13, 2018 in Java by Sushmita
 • 6,910 points • 5,310 views
0 votes
1 answer

Android Studio installation on Windows 7 fails, no JDK found

Adding a system variable JDK_HOME with value ...READ MORE

Dec 13, 2018 in Java by Daisy
 • 8,120 points • 808 views
0 votes
1 answer

Is there a way to instantiate abstract class ?

No, you are not creating the instance ...READ MORE

Dec 12, 2018 in Java by Sushmita
 • 6,910 points • 8,348 views
0 votes
1 answer

Integrate UTF-8 encoding in Java WebApp

Mostly characters äåö are not a problematic ...READ MORE

Dec 12, 2018 in Java by Sushmita
 • 6,910 points • 12,295 views
0 votes
2 answers

Unable to find valid certification path to requested target

Unfortunately - it could be many things ...READ MORE

Dec 15, 2020 in Java by Roshni
 • 10,520 points • 41,892 views
0 votes
1 answer

Mocking static methods with Mockito

@RunWith(PowerMockRunner.class) @PrepareForTest(DriverManager.class) public class Mocker { ...READ MORE

Dec 12, 2018 in Java by Daisy
 • 8,120 points • 7,002 views
0 votes
1 answer

Can anyone show how to implement SortByValue in Tree Map for Java ?

You can't have the TreeMap itself sort on the ...READ MORE

Dec 10, 2018 in Java by Sushmita
 • 6,910 points
edited Dec 10, 2018 by Sushmita • 558 views
0 votes
1 answer

How do I implement a HttpURLConnection using a Proxy ?

Since java 1.5 you can also pass ...READ MORE

Dec 10, 2018 in Java by Sushmita
 • 6,910 points • 9,868 views
0 votes
1 answer

Difference between FetchType LAZY and EAGER in Java Persistence API?

Sometimes you have two entities and there's ...READ MORE

Dec 5, 2018 in Java by Daisy
 • 8,120 points • 2,239 views
0 votes
1 answer

Received fatal alert: handshake_failure through SSLHandshakeException

On update 51, java 1.8 prohibited[1] RC4 ...READ MORE

Dec 5, 2018 in Java by Daisy
 • 8,120 points • 6,243 views
Page:

Most popular tags

"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.