Most voted questions in Java

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How to check whether a string contains a substring in JavaScript?

There doesn't seem to be a String.contains() ...READ MORE

Sep 21, 2022 in Java by Nicholas
 • 7,760 points • 308 views
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window.location.href and window.open () methods in JavaScript

What is the difference between window.location.href and ...READ MORE

Sep 20, 2022 in Java by Nicholas
 • 7,760 points • 323 views
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How can I validate an email address in JavaScript?

To avoid the most basic mistyping, I'd ...READ MORE

Sep 20, 2022 in Java by Nicholas
 • 7,760 points • 239 views
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What does "javascript:void(0)" mean?

<a href="javascript:void(0)" id="loginlink">login</a> ...READ MORE

Sep 20, 2022 in Java by Nicholas
 • 7,760 points • 328 views
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Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not?

I'm attempting to provide authorisation using JavaScript by connecting to the RESTful API integrated into Flask.  However, when I make the request, I receive the following error: XMLHttpRequest cannot load http://myApiUrl/login. No 'Access-Control-Allow-Origin' header ...READ MORE

Sep 20, 2022 in Java by Nicholas
 • 7,760 points • 278 views
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Convert Array to Object

What is the best way to convert: ['a','b','c'] to: { ...READ MORE

Sep 20, 2022 in Java by Nicholas
 • 7,760 points • 352 views
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Copy several byte arrays to one big byte array

I have several little byte arrays and ...READ MORE

Aug 18, 2022 in Java by krishna
 • 2,820 points • 679 views
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How are arrays implemented in java?

In Java, arrays are implemented as objects, ...READ MORE

Aug 18, 2022 in Java by krishna
 • 2,820 points • 350 views
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Where is array's length property defined?

As you know, to determine the length ...READ MORE

Aug 12, 2022 in Java by krishna
 • 2,820 points • 238 views
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Where is Java's Array indexOf?

I am not able to find it. ...READ MORE

Aug 12, 2022 in Java by krishna
 • 2,820 points • 266 views
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How do I fill arrays in Java?

Is there a proper way to fill ...READ MORE

Aug 12, 2022 in Java by krishna
 • 2,820 points • 378 views
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Returning arrays in Java

I am trying to return an array ...READ MORE

Aug 11, 2022 in Java by krishna
 • 2,820 points • 315 views
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How do I declare and initialize an array in Java?

How can I declare and initialize an ...READ MORE

Aug 11, 2022 in Java by krishna
 • 2,820 points • 275 views
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Arrays of different types

Is it possible to have an array ...READ MORE

Aug 8, 2022 in Java by krishna
 • 2,820 points • 249 views
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Multidimensional Arrays lengths in Java

How can I determine the lengths of ...READ MORE

Aug 8, 2022 in Java by krishna
 • 2,820 points • 227 views
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Difference between Arrays.asList(array) and new ArrayList<Integer>(Arrays.asList(array))

What's the difference in these two ways? List<Integer> ...READ MORE

Aug 5, 2022 in Java by krishna
 • 2,820 points • 412 views
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Matrix multiplication using arrays

Utilizing multidimensional arrays, I'm attempting to create ...READ MORE

Aug 5, 2022 in Java by krishna
 • 2,820 points • 395 views
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How to declare an array of different data types

In Java, I am working with arrays, ...READ MORE

Aug 3, 2022 in Java by krishna
 • 2,820 points • 1,774 views
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Benefits of arrays

The benefits of a list over an ...READ MORE

Aug 3, 2022 in Java by krishna
 • 2,820 points • 400 views
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Sort arrays of primitive types in descending order

I got a huge array of double ...READ MORE

Aug 3, 2022 in Java by krishna
 • 2,820 points • 693 views
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Why does Java's Arrays.sort method use two different sorting algorithms for different types?

The array.sort method in Java 6 makes ...READ MORE

Aug 3, 2022 in Java by krishna
 • 2,820 points • 300 views
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What is the difference between List.of and Arrays.asList?

In java 9, new factory methods for ...READ MORE

Aug 2, 2022 in Java by krishna
 • 2,820 points • 516 views
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What does it mean that Java arrays are homogeneous, but ArrayLists are not?

If I got a Type[] array, I ...READ MORE

Aug 1, 2022 in Java by krishna
 • 2,820 points • 429 views
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1 answer

The difference between Classes, Objects, and Instances

A class is a type of blueprint ...READ MORE

Jun 7, 2022 in Java by pranav
 • 2,590 points • 6,945 views
0 votes
1 answer

How to set selected value of jQuery Select2?

The third parameter of the new Option ...READ MORE

May 30, 2022 in Java by gaurav
 • 23,260 points • 35,742 views
0 votes
1 answer

Get selected text from a drop-down list (select box) using jQuery

Select elements typically have two values that ...READ MORE

May 30, 2022 in Java by gaurav
 • 23,260 points • 2,615 views
0 votes
1 answer

Using setTimeout to delay timing of jQuery actions

The JavaScript setTimeout () function  is used ...READ MORE

May 30, 2022 in Java by gaurav
 • 23,260 points • 7,167 views
0 votes
1 answer

Google AJAX Libraries CDN for jQuery

The Google Hosted Libraries is a stable, ...READ MORE

May 30, 2022 in Java by gaurav
 • 23,260 points • 1,137 views
0 votes
1 answer

Wait until all jQuery Ajax requests are done?

You may need to run certain code ...READ MORE

May 30, 2022 in Java by gaurav
 • 23,260 points • 14,839 views
0 votes
1 answer

jQuery.click() vs onClick

So, using a string that is tied ...READ MORE

May 30, 2022 in Java by gaurav
 • 23,260 points • 4,224 views
0 votes
0 answers

CCAvenue Payment Error code 10002 Merchant Authentication failed. Don't worry... It happens to the best of us

I used the code which is provided ...READ MORE

May 24, 2022 in Java by Kichu
 • 19,050 points • 1,430 views
0 votes
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Error: The processing instruction target matching "[xX][mM][lL]" is not allowed

An error occurs when I run I ...READ MORE

May 23, 2022 in Java by Kichu
 • 19,050 points • 2,509 views
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Converting Java objects to JSON with Jackson

I need my JSON to be like ...READ MORE

May 23, 2022 in Java by Kichu
 • 19,050 points • 424 views
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Server Tomcat v9.0 Server at localhost failed to start

I am using Tomcat server v9.0 but ...READ MORE

May 23, 2022 in Java by Kichu
 • 19,050 points • 3,006 views
0 votes
0 answers

How can I fix 'android.os.NetworkOnMainThreadException'?

When I run the Android project for ...READ MORE

May 23, 2022 in Java by Kichu
 • 19,050 points • 796 views
0 votes
0 answers

How to avoid java.util.ConcurrentModificationException when iterating through and removing elements from an ArrayList

I wanted to iterate over an ArrayList ...READ MORE

May 23, 2022 in Java by Kichu
 • 19,050 points • 415 views
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0 answers

UnsatisfiedDependencyException: Error creating bean with name

 I'm trying to create a Spring CRUD ...READ MORE

May 21, 2022 in Java by Kichu
 • 19,050 points • 49,463 views
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Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1

I am getting this error when I ...READ MORE

May 20, 2022 in Java by Kichu
 • 19,050 points • 1,827 views
0 votes
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could not extract ResultSet in hibernate

I am getting this exception: "HTTP Status ...READ MORE

May 20, 2022 in Java by Kichu
 • 19,050 points • 8,191 views
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What is a IOException, and how do I fix it?

What is causing java.io.IOException? What does it ...READ MORE

May 19, 2022 in Java by Kichu
 • 19,050 points • 208 views
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keytool error Keystore was tampered with, or password was incorrect

When I generate certificates on my local ...READ MORE

May 19, 2022 in Java by Kichu
 • 19,050 points • 1,025 views
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0 answers

Editor does not contain a main type in Eclipse

I have 64-bit ubuntu where I downloaded ...READ MORE

May 19, 2022 in Java by Kichu
 • 19,050 points • 2,289 views
0 votes
0 answers

Getting java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory exception

I am getting this exception when I ...READ MORE

May 18, 2022 in Java by Kichu
 • 19,050 points • 1,144 views
0 votes
0 answers

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 exception

I am getting the error java.lang.IndexOutOfBoundsException: Index: ...READ MORE

May 17, 2022 in Java by Kichu
 • 19,050 points • 2,149 views
0 votes
0 answers

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

This is the exception on getConnection(): java.sql.SQLException: Access denied ...READ MORE

May 16, 2022 in Java by Kichu
 • 19,050 points • 6,611 views
0 votes
0 answers

resource : Invocation of init method failed

I am getting this error when I ...READ MORE

May 16, 2022 in Java by Kichu
 • 19,050 points • 2,860 views
0 votes
0 answers

Can I override and overload static methods in Java?

My questions are: Why can't static methods be ...READ MORE

May 15, 2022 in Java by Kichu
 • 19,050 points • 251 views
0 votes
0 answers

Error java.lang.OutOfMemoryError: GC overhead limit exceeded

When I execute my JUnit tests I am getting ...READ MORE

May 15, 2022 in Java by Kichu
 • 19,050 points • 381 views
0 votes
0 answers

What is "String args[]"? parameter in main method Java

I am a beginner in java and ...READ MORE

May 15, 2022 in Java by Kichu
 • 19,050 points • 317 views
0 votes
0 answers

java.lang.NumberFormatException: null i

I am getting this error while doing ...READ MORE

May 13, 2022 in Java by Kichu
 • 19,050 points • 1,630 views
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