Most answered questions in Java

0 votes
1 answer

How can I set JFrame to appear centered, regardless of monitor resolution?

Hello @kartik, Use setLocationRelativeTo(null) This method has a special effect ...READ MORE

Apr 21, 2020 in Java by Niroj
 • 82,880 points • 1,353 views
0 votes
1 answer

What is definition of an invalid literal?

Hi, @ Stephen, I will explain to you ...READ MORE

Apr 20, 2020 in Java by Gitika
 • 65,910 points • 1,918 views
0 votes
1 answer

'javac' is not recognized as an internal or external command, operable program or batch file.

Hey @Paridhi, check this out https://www.edureka.co/community/4800/unable-resolve-error-recognized-internal-external-command This should solve ...READ MORE

Apr 20, 2020 in Java by Sirajul
 • 59,230 points • 1,539 views
0 votes
1 answer

How to run a Java program from the command line on Windows?

Hello @kartik, In case your Java class is ...READ MORE

Apr 9, 2020 in Java by Niroj
 • 82,880 points • 698 views
0 votes
1 answer

Error: Unable to run mksdcard SDK tool in java?

Hello, If you use  Ubuntu, you can try: sudo apt-get ...READ MORE

Apr 9, 2020 in Java by Niroj
 • 82,880 points • 570 views
0 votes
1 answer

How can we activate JMX on my JVM for access with jconsole?

Hello @kartik, Run your java application with the ...READ MORE

Apr 9, 2020 in Java by Niroj
 • 82,880 points • 1,106 views
0 votes
1 answer

Error:“java.lang.OutOfMemoryError: Java heap space” ?

Hii, Possible causes: Simple configuration issue, where the specified ...READ MORE

Apr 8, 2020 in Java by Niroj
 • 82,880 points • 941 views
0 votes
1 answer

JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instantiate from JSON object?

Hello @kartik, his happens for these reasons: your inner ...READ MORE

Apr 8, 2020 in Java by Niroj
 • 82,880 points • 14,807 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 • 612 views
0 votes
1 answer

What is the reason for no ConcurrentHashSet against ConcurrentHashMap?

Hello, There's no built in type for ConcurrentHashSet because you ...READ MORE

Apr 8, 2020 in Java by Niroj
 • 82,880 points • 1,111 views
0 votes
1 answer

Convert data in List<JsonNode> to Map <String,String> in Java

Hi, @Jyra, Basically, you can use the object mapper to ...READ MORE

Apr 7, 2020 in Java by Gitika
 • 65,910 points • 21,031 views
0 votes
1 answer

how to get latest modified object or folder in s3 bucket in java.

Here's what you could probably try: List all ...READ MORE

Apr 6, 2020 in Java by Liana
 • 8,098 views
0 votes
1 answer

java path not found in window 7

Hey, You can follow these few steps: From the ...READ MORE

Apr 3, 2020 in Java by Gitika
 • 65,910 points • 926 views
0 votes
1 answer

how to do global variable declaration in java

Hello,​ Global varriable which is defined after the ...READ MORE

Apr 3, 2020 in Java by Niroj
 • 82,880 points • 485 views
0 votes
1 answer

How to automatically deploy a jar from s3 to aws lambda?

You could probably create a lambda function ...READ MORE

Apr 2, 2020 in Java by Jake
 • 4,125 views
+1 vote
1 answer

How to get Alias name of AWS Lambda function from java code?

Hey @Abhishek, you could probably use the ...READ MORE

Apr 1, 2020 in Java by Sirajul
 • 59,230 points • 1,798 views
+1 vote
1 answer

How to generate a class at runtime in Java?

Yes: you can do it with Burningwave ...READ MORE

Mar 16, 2020 in Java by Roberto
 • 460 points
edited Apr 14, 2020 by Roberto • 1,011 views
0 votes
1 answer

What is Modeshape. How can i use this?

ModeShape is an open-source implementation of the JSR-283 specification and ...READ MORE

Mar 30, 2020 in Java by Gitika
 • 65,910 points • 833 views
+2 votes
1 answer

please someone tell the code to launch an instance in digital ocean using java

In order to create a digital ocean ...READ MORE

Jan 14, 2020 in Java by Sirajul
 • 59,230 points • 1,079 views
+1 vote
1 answer

Program for nth prime number without using scanner

Hi @Sneha, you could use something like ...READ MORE

Jan 13, 2020 in Java by Kalgi
 • 52,360 points • 891 views
+1 vote
1 answer

Is Java a compiled language or interpreted?

Compiled languages are directly converted into machine ...READ MORE

Dec 18, 2019 in Java by Hannah
 • 18,570 points • 1,744 views
+1 vote
1 answer

how to print this statement in java print(' '*(r-x-1)+'*'*(2*x+1)) ( logic used in python .its perfect) but java wrong output came

In ' '*(r-x-1) and '*'*(2*x+1), you used multiplication ...READ MORE

Dec 22, 2019 in Java by Utsab Bandyopadhyay
 • 919 views
0 votes
1 answer

Java and MySql: Delete database if exists

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

Sep 30, 2019 in Java by Kiran
 • 1,930 views
0 votes
1 answer

Java and MySql: Check if database exists

You can get the list of databases ...READ MORE

Sep 30, 2019 in Java by Tina
 • 2,707 views
+1 vote
1 answer

How to create database in MySql using Java?

First, you will have to create connection ...READ MORE

Sep 30, 2019 in Java by Shri
 • 3,048 views
0 votes
1 answer

How to connect Java to MySql Database?

Make sure you have the MySQL jdbc ...READ MORE

Sep 30, 2019 in Java by Shyam
 • 1,039 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
 • 69,230 points • 615 views
0 votes
1 answer

What is the difference between main(String[] args) and main(String... args) in Java?

String[] is used to accept a single parameter ...READ MORE

Sep 6, 2019 in Java by Piya
 • 3,457 views
+1 vote
1 answer

Adding Jar file to project

Changing the JRE System Library might work.  Right-click ...READ MORE

Sep 4, 2019 in Java by Esha
 • 2,546 views
0 votes
1 answer

Handling empty input in swing text box

login_but.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ //System.out.print(F_user.getText()); String username ...READ MORE

Aug 27, 2019 in Java by Nila
 • 1,181 views
0 votes
1 answer

How to get text from text box in Swing?

You can add a Button listener here. ...READ MORE

Aug 27, 2019 in Java by Jishan
 • 1,052 views
0 votes
1 answer

How to create password field in Swing?

Swing provides an object called JPasswordField for ...READ MORE

Aug 27, 2019 in Java by Bruce
 • 440 views
0 votes
1 answer

Create Buttons in Java Swing

First, you will have to create a ...READ MORE

Aug 27, 2019 in Java by Esha
 • 923 views
0 votes
1 answer

Swing Java create Text Box

In the frame, you can use the ...READ MORE

Aug 27, 2019 in Java by Kyle
 • 1,074 views
0 votes
1 answer

How to create text labels in Swing, Java?

In the frame, you can use the ...READ MORE

Aug 27, 2019 in Java by Jimmy
 • 818 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
 • 625 views
0 votes
1 answer

Java and MySql: Check if database exists

You can get the list of databases ...READ MORE

Aug 27, 2019 in Java by Kunal
 • 3,981 views
0 votes
1 answer

How to create database in MySql using Java?

First, you will have to create connection ...READ MORE

Aug 27, 2019 in Java by Juni
 • 565 views
0 votes
1 answer

How to connect Java to MySql Database?

This will work: try { ...READ MORE

Aug 27, 2019 in Java by John
 • 948 views
0 votes
1 answer

Do I have download any jars related to ZeonPad or do i perfrom the above code directly in Eclipse IDE. Please guide me.

Hello @Basha.  If you are running it on ...READ MORE

Aug 21, 2019 in Java by Ramya
 • 1,164 views
0 votes
1 answer

How to Convert .msg (outlook mail) to pdf using java

Hi @Basha! Here's a code to help you ...READ MORE

Aug 21, 2019 in Java by Kishan
 • 5,062 views
0 votes
1 answer

Can you explain what is the difference between hashtable and hashmap?

Hi, Hashtable is synchronized, whereas HashMap is not. This makes HashMap better for ...READ MORE

Aug 15, 2019 in Java by anonymous
 • 581 views
0 votes
1 answer

How can I change my string into date directly?

Hi Priya, You check this code, import java.util.Date; import java.text.DateFormat; import ...READ MORE

Aug 10, 2019 in Java by sampriti
 • 1,120 points • 447 views
0 votes
1 answer

How to add items in list at a time?

Hi Priyanka , I think this code snippet ...READ MORE

Aug 9, 2019 in Java by sampriti
 • 1,120 points • 2,178 views
0 votes
1 answer

how to compare two words in java?

hey,  I think in your code the function ...READ MORE

Aug 8, 2019 in Java by sampriti
 • 1,120 points
edited Aug 8, 2019 by Kalgi • 2,074 views
0 votes
1 answer

which maven dependency has to be added for MongoPreparedStatement in java 1.8

You need to define the dependency of a ...READ MORE

Jul 30, 2019 in Java by Sirajul
 • 59,230 points • 1,194 views
+1 vote
1 answer

Facing "Unresolved compilation problem : Invalid escape sequence (valid ones are \b \t \n \f \r \" \' \\ )" error when trying to launch firefox from selenium. Can anyone please help me

I think the problem is with this ...READ MORE

Jul 26, 2019 in Java by Venu
 • 3,795 views
0 votes
1 answer

What is Comparable in Java?

As the name itself suggests, Comparable is an interface which defines ...READ MORE

Jul 15, 2019 in Java by Neha
 • 6,300 points • 491 views
0 votes
1 answer

What is Just in time compiler in Java?

The Just-In-Time compiler is one of the integral parts ...READ MORE

Jul 14, 2019 in Java by Frankie
 • 9,830 points • 488 views
0 votes
1 answer

What do you mean by Socket Programming?

Socket programming is a way of connecting two ...READ MORE

Jul 14, 2019 in Java by Frankie
 • 9,830 points • 940 views
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