Trending questions in Java

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1 answer

Getting "Unsupported major.minor version" error.

I will recommend not to upgrade the ...READ MORE

Feb 22, 2019 in Java by Sapan
 • 1,362 views
0 votes
1 answer

How to install and configure JDK8 on Windows 10

Hey @Henna, Go to this page  Accept the license ...READ MORE

Feb 28, 2019 in Java by Kalgi
 • 958 views
0 votes
1 answer

What are the different ways of comparing Strings in Java?

The different ways of comparing string in ...READ MORE

Mar 5, 2019 in Java by Wasim
 • 704 views
0 votes
1 answer

How to remove object from an Array?

Here is a code I came up ...READ MORE

Mar 11, 2019 in Java by Esha Gupta
 • 441 views
0 votes
2 answers

Setting Proxy for JVM usage

JVM uses the proxy to make HTTP ...READ MORE

Aug 26, 2019 in Java by Sirajul
 • 59,230 points • 2,320 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 • 2,953 views
0 votes
1 answer

How to disable session in JSP?

<%@ page session=“false” %>    Using this above command, you can ...READ MORE

Feb 18, 2019 in Java by Frankie
 • 9,830 points • 1,274 views
0 votes
1 answer

How to run Unix shell script from Java code?

ProcessBuilder pb = new ProcessBuilder("myshellScript.sh", "myArg1", "myArg2"); ...READ MORE

Oct 26, 2018 in Java by Daisy
 • 8,120 points • 6,213 views
0 votes
1 answer

finalize() called on strongly reachable object in Java 8

A bit of conjecture here. It is ...READ MORE

Mar 5, 2019 in Java by developer_1
 • 3,320 points • 554 views
0 votes
1 answer

Need help with Java Installation

Hi @Ashmita, to asnwer your question, lets ...READ MORE

Feb 28, 2019 in Java by Pratibha
 • 3,690 points • 760 views
0 votes
1 answer

SuppressWarnings (“unchecked”) in Java

@SuppressWarnings("unchecked") is used when Java generics just don't ...READ MORE

Sep 4, 2018 in Java by anto.trigg4
 • 3,440 points • 8,360 views
0 votes
1 answer

Compiling error in Java

Generally the file name and the class ...READ MORE

Mar 7, 2019 in Java by Priyaj
 • 58,090 points • 409 views
0 votes
2 answers

How do I convert an input stream into a byte array

You could probably try this if you ...READ MORE

Aug 29, 2019 in Java by Sirajul
 • 59,230 points • 3,373 views
0 votes
1 answer

Rotate elements of array by n position

Here is what I came up with,  import ...READ MORE

Mar 3, 2019 in Java by Priyaj
 • 58,090 points • 499 views
0 votes
2 answers

How to convert byte array to String and STring to byte array?

The best possible way of conversion between byte[] and String is to ...READ MORE

Aug 22, 2019 in Java by Sirajul
 • 59,230 points • 3,069 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 • 3,635 views
0 votes
1 answer

How to break a number to individual digit?

The best way would be find the ...READ MORE

Mar 7, 2019 in Java by Priyaj
 • 58,090 points • 311 views
0 votes
1 answer

How to Read/Write String from a File in Android

Writing a File in android: private void writeToFile(String ...READ MORE

Oct 3, 2018 in Java by sharth
 • 3,370 points • 6,976 views
0 votes
1 answer

Xpath in Java for accessing OWL Document

Don't query RDF (or OWL) with XPath In ...READ MORE

Feb 28, 2019 in Java by developer_1
 • 3,320 points • 607 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 • 3,653 views
0 votes
2 answers

How can I convert byte array into hex string in Java?

public static String byteArrayToHex(byte[] a) { ...READ MORE

Aug 29, 2019 in Java by Sirajul
 • 59,230 points • 2,612 views
0 votes
1 answer

What is composition in Java?

Composition is again specialized form of Aggregation ...READ MORE

Feb 18, 2019 in Java by Neha
 • 6,300 points
edited Feb 18, 2019 by Neha • 911 views
0 votes
1 answer

Mathematical Operations in Java

Ok. This is happening because you're dividing ...READ MORE

Feb 28, 2019 in Java by developer_1
 • 3,320 points • 481 views
0 votes
1 answer

How to use nested class in Java?

This program will help you understand the ...READ MORE

Mar 3, 2019 in Java by Priyaj
 • 58,090 points • 356 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 • 2,885 views
0 votes
1 answer

Unable to find valid certification path to requested target - error even after cert imported

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

Nov 27, 2018 in Java by Daisy
 • 8,120 points • 4,398 views
0 votes
1 answer

Use annotation for excluding specific fields from serialization

Simply mark the desired fields with the ...READ MORE

Feb 1, 2019 in Java by developer_1
 • 3,320 points • 1,525 views
0 votes
1 answer

What is the difference between Polymorphism, Overriding and Overloading?

As far as I know, the main ...READ MORE

Jun 19, 2018 in Java by scarlett
 • 1,290 points • 11,330 views
+1 vote
1 answer

Convert CSV to JSON. JSON payload should be included in square brackets

The JSON payload uses a list and ...READ MORE

Aug 7, 2018 in Java by Omkar
 • 69,210 points • 9,246 views
0 votes
1 answer

Architecture mismatch between driver and application

None of these did it for me. ...READ MORE

Feb 6, 2019 in Java by developer_1
 • 3,320 points • 1,277 views
0 votes
1 answer

Trusting all certificates using HttpClient over HTTPS

Note: Do not implement this in production ...READ MORE

Jun 25, 2018 in Java by Rishabh
 • 3,620 points • 11,016 views
0 votes
1 answer

How to parse date string to Date?

The pattern is wrong. You have a ...READ MORE

Oct 29, 2018 in Java by Daisy
 • 8,120 points • 5,569 views
0 votes
2 answers

What is the use of @Override annotation in Java ? When do we use it ?

@Override annotation is used when we override ...READ MORE

Aug 14, 2019 in Java by Sirajul
 • 59,230 points • 3,127 views
0 votes
2 answers

What is the easiest way to iterate through the characters of a string in Java?

There are two approaches to this: for(int i ...READ MORE

Aug 19, 2019 in Java by Sirajul
 • 59,230 points • 1,506 views
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 • 2,163 views
0 votes
2 answers

Why are you not able to declare a class as static in Java?

A static keyword  can be used with ...READ MORE

Jun 11, 2019 in Java by Neha
 • 330 points • 1,132 views
+1 vote
1 answer

Error: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2

Hello @Jino, It is just a JVM bug ...READ MORE

Nov 21, 2018 in Java by Nabarupa
 • 4,421 views
0 votes
0 answers

What is the difference between Default and Protected access specifiers?

Can anyone explain in brief as what ...READ MORE

Feb 6, 2019 in Java by Dishantu
 • 1,151 views
0 votes
0 answers

how to solve thread-cannot find symbol

Feb 11, 2019 in Java by anonymous
 • 934 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 • 2,894 views
0 votes
2 answers

How to convert an int array to string using tostring method in java?

Use java.util.Arrays: String res = Arrays.toString(array); System. ...READ MORE

Aug 16, 2019 in Java by Sirajul
 • 59,230 points • 2,144 views
0 votes
1 answer

What do you mean by aggregation in Java?

Aggregation is a specialized form of Association ...READ MORE

Feb 18, 2019 in Java by Frankie
 • 9,830 points • 532 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 • 3,172 views
0 votes
0 answers

How execute JSP web page in Intellij

Hi all, I am new to java and ...READ MORE

Jan 24, 2019 in Java by Abraham
 • 120 points
edited Jul 11, 2023 by Khan Sarfaraz • 1,593 views
0 votes
1 answer

Arrays are passed by value or passed by reference in Java?

Arrays are not a primitive type in ...READ MORE

Jul 18, 2018 in Java by sophia
 • 1,400 points • 9,706 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 • 2,089 views
0 votes
2 answers

How can I convert an 'ArrayList<String> to 'String[]' in Java

In Java 8 or later: String listString = ...READ MORE

Aug 20, 2019 in Java by Sirajul
 • 59,230 points • 2,868 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 • 2,042 views
0 votes
1 answer

USing Java App to create Windows Service

Apache Commons Daemon is a good alternative. It ...READ MORE

Feb 1, 2019 in Java by developer_1
 • 3,320 points • 975 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 • 2,175 views
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