Most viewed questions in Java

0 votes
2 answers

How to convert array into list in Java?

Another workaround if you use apache commons-lang: int[] ...READ MORE

Aug 10, 2018 in Java by samarth295
 • 2,220 points • 675 views
0 votes
2 answers

What is null in java?

"null" is a reference type and its ...READ MORE

Jul 31, 2018 in Java by Mrunal
 • 680 points • 674 views
0 votes
0 answers

Ho do I Iterate through a HashMap which contains duplicate values

What is the fastest and the best ...READ MORE

Apr 16, 2018 in Java by Daisy
 • 8,120 points • 672 views
0 votes
0 answers

Convert a number into a Roman numeral in JavaScript

What is the best way to convert integers to roman numerals? function romanNumeralGenerator (int) { } Consider the following sample inputs and outputs: 1 = "I" 5 = ...READ MORE

Dec 8, 2022 in Java by Nicholas
 • 7,760 points • 671 views
0 votes
2 answers

How does random shuffling of an array

Here is a simple way using an ArrayList: List<Integer> ...READ MORE

Nov 2, 2018 in Java by Sushmita
 • 6,910 points • 670 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 • 667 views
+2 votes
1 answer

What is the meaning of "this" keyword in Java?

public class MyThisTest { private int ...READ MORE

Oct 10, 2018 in Java by Daisy
 • 8,120 points • 662 views
0 votes
1 answer

How to draw a circle in HTML5 Canvas using JavaScript?

Here's how to draw a circle in ...READ MORE

Nov 15, 2022 in Java by Damonlang
 • 1,230 points • 661 views
0 votes
1 answer

Create fucntion to find GCD of two numbers

Hey @Diya, here is a code on how ...READ MORE

Mar 28, 2019 in Java by Priyaj
 • 58,090 points • 660 views
0 votes
1 answer

What are optional parameters in Java

Using three dots: public void move(Object... x) { ...READ MORE

Apr 27, 2018 in Java by developer_1
 • 3,320 points • 660 views
0 votes
1 answer

The best way to filter a Java Collection?

 this problem is solved using streams and ...READ MORE

May 29, 2018 in Java by Parth
 • 4,630 points • 659 views
+1 vote
0 answers

output occurs but invisible immediately how to rectify this ?

public class evenodd { public static void main(String[] ...READ MORE

Oct 17, 2019 in Java by BIPLAB
 • 130 points • 654 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 • 652 views
0 votes
0 answers

pass datasource for job to AWS Glue client in JAVA

How can i mention datasource for AWS ...READ MORE

Nov 10, 2019 in Java by cheshta
 • 120 points • 652 views
0 votes
0 answers

sir iam using 64 bit windows i write javA PROGRAM IN MY SYSTEM CMD SHOWS ERROR LIKE SOURCE FILES PLEASE GIE ME SUGGESTION

Mar 17, 2019 in Java by anonymous
 • 650 views
0 votes
1 answer

What is the use of StringBuilder in java?

If you use String concatenation in a ...READ MORE

Jun 19, 2018 in Java by Akrati
 • 960 points • 650 views
0 votes
1 answer

How to print java array in the simplest way?

String[] arr = new String[] {"John", "Mary", ...READ MORE

Apr 17, 2018 in Java by sophia
 • 1,400 points • 650 views
0 votes
2 answers

How does '&&' (AND) and '||' (OR) statements work inside an IF condition ?

Short circuit here means that the second ...READ MORE

Sep 19, 2018 in Java by Sushmita
 • 6,910 points • 646 views
0 votes
1 answer

Can a static reference be made to a non-static method

setLoanItem() isn't a static method, it's an instance ...READ MORE

Jun 26, 2018 in Java by samarth295
 • 2,220 points • 644 views
0 votes
1 answer

How can two strings be concatenated in java?

You can concatenate Strings using the + operator: System.out.println("Your number ...READ MORE

Jun 6, 2018 in Java by Daisy
 • 8,120 points • 644 views
0 votes
1 answer

How do I configure Maven for offline development?

Hello @kartik, You have two options for this: 1.) ...READ MORE

Jun 3, 2020 in Java by Niroj
 • 82,880 points • 641 views
0 votes
1 answer

What Kind of Files IOC Container can Read other than XML directly or Indirectly?

Hi, @Ferry, The configuration metadata is nothing but bean ...READ MORE

Apr 23, 2020 in Java by Gitika
 • 65,910 points • 639 views
0 votes
2 answers

How to parse a date?

SimpleDateFormat parser=new SimpleDateFormat("EEE MMM d HH:mm:ss zzz ...READ MORE

Dec 6, 2018 in Java by Sushmita
 • 6,910 points • 639 views
0 votes
1 answer

Why Object is Super Class in Java?

Object is an exception to the first rule, ...READ MORE

Feb 7, 2019 in Java by Dheeraj
 • 638 views
0 votes
1 answer

How to get the Generic type of class at run time?

public class GenericClass<T> { ...READ MORE

Jul 2, 2018 in Java by Akrati
 • 3,190 points • 637 views
0 votes
1 answer

Difference between String.equals() and ==

Though both are used for comparison, but the ...READ MORE

May 7, 2018 in Java by geek.erkami
 • 2,680 points • 634 views
0 votes
0 answers

If statement not working in AWS Lamnda - S3Event code

Hi, I am using below  lambda function with ...READ MORE

Apr 4, 2020 in Java by Abhishek
 • 280 points • 627 views
0 votes
2 answers

What is immutable string in java?

To answer your question, the String is ...READ MORE

Feb 9, 2022 in Java by Soham
 • 9,700 points • 627 views
0 votes
1 answer

Replace String with another in java

String s = "HelloSuresh"; s = s.replace("Hello",""); System.out.pri ...READ MORE

Aug 21, 2018 in Java by Parth
 • 4,630 points • 625 views
0 votes
1 answer

Fixing java.lang.UnsupportedClassVersionError in Java

To fix the exception/ error, you should ...READ MORE

Jun 7, 2018 in Java by sharth
 • 3,370 points • 625 views
0 votes
1 answer

What is Enum in Java?

 It means that the type argument for ...READ MORE

Nov 13, 2018 in Java by Frankie
 • 9,830 points • 623 views
0 votes
1 answer

Java replace : replace all charecters with space except the matched string like "test"

Hi, @jyra, You can go through this example:  String ...READ MORE

Oct 14, 2020 in Java by Gitika
 • 65,910 points • 620 views
0 votes
1 answer

How can I make the return type of a method generic?

First of all, define callFriend: public <T extends ...READ MORE

May 19, 2018 in Java by sharth
 • 3,370 points • 619 views
0 votes
1 answer

varargs in Java

Well, varargs are generally used to deal ...READ MORE

Oct 31, 2018 in Java by code.reaper12
 • 3,500 points • 616 views
0 votes
1 answer

using comparator for sorting in java

You've got two problems: 1) You're using Collections.sort (which takes ...READ MORE

Jul 6, 2018 in Java by samarth295
 • 2,220 points • 616 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 • 611 views
+1 vote
1 answer

How can I solve this example in an easy way??

You can use this code: import java.util.*; public class ...READ MORE

Sep 23, 2019 in Java by Omkar
 • 69,210 points • 609 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 • 609 views
0 votes
1 answer

How to get the name of the currently executing method?

Thread.currentThread().getStackTrace() will usually contain the method you’re ...READ MORE

Jul 5, 2018 in Java by Daisy
 • 8,120 points • 609 views
0 votes
1 answer

Java and MySql: Delete database if exists

First, you have to check if the ...READ MORE

Aug 27, 2019 in Java by Varun
 • 607 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

How to use proper use cases for Android UserManager.isUserAGoat()?

Hello @kartik, From their source, the method used to ...READ MORE

May 25, 2020 in Java by Niroj
 • 82,880 points • 606 views
0 votes
1 answer

How to pass an object from one activity to another on Android?

Hello @kartik, Implement your class with Serializable. Let's ...READ MORE

Apr 8, 2020 in Java by Niroj
 • 82,880 points • 606 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 • 605 views
0 votes
1 answer

How to display an animated GIF?

Android actually can decode and display animated ...READ MORE

Oct 8, 2018 in Java by sharth
 • 3,370 points • 600 views
+2 votes
1 answer

How do I ask the Selenium-WebDriver to wait for few seconds in Java?

There are two ways to wait: explicit ...READ MORE

Dec 19, 2018 in Java by Daisy
 • 8,120 points
edited Dec 19, 2018 by Daisy • 599 views
0 votes
1 answer

Converting String and Float Data-types

Using Java’s Float class. float f = Float.parseFloat("25"); String s = ...READ MORE

May 9, 2018 in Java by developer_1
 • 3,320 points • 595 views
0 votes
1 answer

How to download minecraft java edition?

Downloading Minecraft: Java Edition is a straightforward ...READ MORE

Oct 30, 2023 in Java by anonymous
 • 3,320 points • 593 views
0 votes
0 answers

Apache maven vs Eclipse maven plugin

Hi, I want to install maven but don't ...READ MORE

Nov 25, 2020 in Java by zaraaq
 • 270 points • 591 views
–1 vote
0 answers

Is there anyone who knows well about android app studio and can build an app? I have a very good idea want to develop an app, need your help, if u can help me please leave a message [closed]

May 8, 2020 in Java by Pooja
 • 110 points
closed May 8, 2020 by Sirajul • 591 views
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