Most voted questions in Java

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How do I declare and initialize an array in Java?

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

Feb 8, 2022 in Java by Edureka
 • 120 points • 282 views
0 votes
1 answer

How do I efficiently iterate over each entry in a Java Map?

To answer your questions, use the following ...READ MORE

Feb 8, 2022 in Java by Soham
 • 9,700 points • 424 views
0 votes
1 answer

Reverse a string in Java

To answer your question, you can use ...READ MORE

Feb 8, 2022 in Java by Soham
 • 9,700 points • 402 views
0 votes
1 answer

Render HTML to an image

To answer your question, there are a ...READ MORE

Feb 8, 2022 in Java by Soham
 • 9,700 points • 1,566 views
0 votes
1 answer

java.lang.classnotfoundexception: com.mysql.jdbc.driver

I assume that your mysql connectivity library ...READ MORE

Feb 8, 2022 in Java by Soham
 • 9,700 points • 7,241 views
0 votes
1 answer

no 'access-control-allow-origin' header is present on the requested resource

The java <class-name> command syntax is one ...READ MORE

Feb 8, 2022 in Java by Soham
 • 9,700 points • 513 views
0 votes
1 answer

What are the -Xms and -Xmx parameters when starting JVM?

The XMX parameter helps in signifying and ...READ MORE

Feb 8, 2022 in Java by Soham
 • 9,700 points • 6,779 views
0 votes
1 answer

Uncaught referenceerror: $ is not defined

The references must be aligned or put ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 2,212 views
0 votes
1 answer

could not find module "@angular-devkit/build-angular"

The mode must be changed to Dev ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 5,905 views
0 votes
1 answer

Failed to load resource: the server responded with a status of 404 (not found)

In order to avoid an error while ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 1,801 views
0 votes
1 answer

No compiler is provided in this environment. perhaps you are running on a jre rather than a jdk?

Once you are on your Eclipse integrated ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 7,334 views
0 votes
1 answer

What does "javascript:void(0)" mean?

The href of the link helps with ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 691 views
0 votes
1 answer

JSON formatter in C#?

 In order to do the needful, one ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 2,031 views
0 votes
1 answer

Problem with gif with transparent background

In this case, I have noticed that ...READ MORE

Feb 8, 2022 in Java by Rahul
 • 9,670 points • 661 views
0 votes
1 answer

Does Java have a "IN" operator or function like SQL? [duplicate]

The Java language is designed to be ...READ MORE

Feb 2, 2022 in Java by Vaani
 • 7,020 points
edited Jun 22, 2023 by Khan Sarfaraz • 4,095 views
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0 answers

Javac file not found error.

I'm completely new to java. I spent ...READ MORE

Nov 21, 2021 in Java by anonymous
 • 120 points • 452 views
0 votes
0 answers

how to compare two strings in java?

how to compare two strings in java? READ MORE

Nov 16, 2021 in Java by Naresh
 • 210 points • 450 views
0 votes
1 answer

Testing question and answer

Testing question and answer. READ MORE

Nov 16, 2021 in Java by anonymous
 • 300 points • 285 views
0 votes
0 answers

how to find lenght of string in java ?

java READ MORE

Nov 12, 2021 in Java by anonymous
 • 210 points • 364 views
0 votes
0 answers

Exception in thread "main" java.lang.NoClassDefFoundError: org/openqa/selenium/HasAuthentication

Exception in thread "main" java.lang.NoClassDefFoundError: org/openqa/selenium/HasAuthentication at java.base/java.lang.ClassLoader.defineClass1(Native ...READ MORE

Oct 22, 2021 in Java by anonymous
 • 120 points • 1,522 views
0 votes
1 answer

How do I check if a string contains a substring in Java?

Hi@akhtar, The first and foremost way to check ...READ MORE

Dec 30, 2020 in Java by MD
 • 95,440 points
edited Jul 5, 2023 by Khan Sarfaraz • 51,677 views
0 votes
1 answer

How to convert Java String into byte[]?

The object your method decompressGZIP() needs is a byte[]. So the ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 1,283 views
0 votes
1 answer

How to install the JDK on Ubuntu Linux?

Open Terminal from Application Dash or press Ctrl+Alt+T Update repository: sudo add-apt-repository ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 610 views
0 votes
1 answer

How do I count the number of occurrences of a char in a String?

My 'idiomatic one-liner' for this is: int count ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 1,813 views
0 votes
1 answer

Unsupported major.minor version 52.0

The issue is because of a Java ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 6,161 views
0 votes
1 answer

SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”

I had the same issue with WebSphere ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 25,238 views
0 votes
1 answer

How to read all files in a folder from Java?

public void listFilesForFolder(final File folder) { ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 1,949 views
0 votes
1 answer

How to append text to an existing file in Java?

Java 7+ If you just need to do ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points
edited Jul 6, 2023 by Khan Sarfaraz • 971 views
0 votes
1 answer

Removing whitespace from strings in Java

st.replaceAll("\\s+","") removes all whitespaces and non-visible characters (e.g., ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 4,918 views
0 votes
1 answer

How do I save a String to a text file using Java?

If you're simply outputting text, rather than ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points
edited Jul 6, 2023 by Khan Sarfaraz • 1,803 views
0 votes
1 answer

How to convert a Set to List in Java?

Hi@MD, The most straightforward way to convert a ...READ MORE

Dec 30, 2020 in Java by akhtar
 • 38,230 points
edited Jun 22, 2023 by Khan Sarfaraz • 412 views
0 votes
1 answer

How to get the current date/time in Java?

It depends on what form of date/time ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 961 views
0 votes
1 answer

Implements vs extends: When to use? What's the difference?

Extends is for extending a class. implements are for implementing an interface The difference between ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 1,560 views
0 votes
1 answer

How do I convert from int to String?

Normal ways would be Integer.toString(i) or String.valueOf(i). The concatenation will work, ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 469 views
0 votes
1 answer

How do I join two lists in Java?

In Java 8: List<String> newList = Stream.concat(listOne.stream(), listTwo.stream()) ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points • 350 views
0 votes
1 answer

How do I copy an object in Java?

Create a copy constructor: class DummyBean { ...READ MORE

Dec 30, 2020 in Java by Gitika
 • 65,910 points
edited Jul 4, 2023 by Khan Sarfaraz • 427 views
0 votes
1 answer

How to remove the last character from a string?

Hi@akhtar, You can use the StringBuffer class. It provides ...READ MORE

Dec 30, 2020 in Java by MD
 • 95,440 points • 496 views
0 votes
2 answers

Reading a plain text file in Java

Read a plain text file: Java Code: import java.io.BufferedReader; import ...READ MORE

Dec 29, 2020 in Java by Nikita
 • 1,221 views
0 votes
2 answers

When to use static methods

Java main() method is always static, so that compiler ...READ MORE

Dec 29, 2020 in Java by Reshma
 • 772 views
0 votes
3 answers

How to check if a String is numeric in Java?

Check if a string is numeric public class ...READ MORE

Dec 29, 2020 in Java by Carlos
 • 2,313 views
0 votes
2 answers

Java string to date conversion

We can convert String to Date in java using parse() method ...READ MORE

Dec 29, 2020 in Java by Nikita
 • 1,014 views
0 votes
4 answers

How do I check if a file exists in Java?

To test to see if a file ...READ MORE

Dec 29, 2020 in Java by Rajiv
 • 8,910 points • 59,704 views
0 votes
4 answers

How to convert a char to a String?

There are two ways you can do ...READ MORE

Dec 29, 2020 in Java by Roshni
 • 10,520 points • 848 views
0 votes
2 answers

How to make a new List in Java?

Initializing a List in Java The Java.util.List is a child ...READ MORE

Dec 28, 2020 in Java by Thomas Walenta
 • 499 views
0 votes
2 answers

File to byte[] in Java?

Example 1: Convert File to byte[] import java.io.IOException; import ...READ MORE

Dec 28, 2020 in Java by Reshma
 • 537 views
0 votes
1 answer

Can anyone help me i have been struggling for weeks now to solve this problem

Hello, @Tafadzwa, Any way just navigate to C:\Users\user.gradle\caches\ ...READ MORE

Dec 24, 2020 in Java by Gitika
 • 65,910 points • 2,059 views
0 votes
1 answer

Static Classes In Java

Java has static nested classes but it sounds like ...READ MORE

Dec 23, 2020 in Java by Gitika
 • 65,910 points
edited Jul 5, 2023 by Khan Sarfaraz • 720 views
0 votes
1 answer

Can't execute jar- file: “no main manifest attribute”

First, it's kind of weird, to see ...READ MORE

Dec 23, 2020 in Java by Gitika
 • 65,910 points • 2,197 views
0 votes
1 answer

Download a file with Android, and showing the progress in a ProgressDialog

1. Use AsyncTask and show the download progress in ...READ MORE

Dec 23, 2020 in Java by Gitika
 • 65,910 points • 5,686 views
0 votes
1 answer

Converting array to list in Java

In your example, it is because you ...READ MORE

Dec 23, 2020 in Java by Gitika
 • 65,910 points • 728 views
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