Most viewed questions in Edureka Community

+3 votes
13 answers

How can I run a ‘docker exec’ command inside a docker container?

you can run any command in a ...READ MORE

Dec 10, 2018 in Docker by Pramiti
365,268 views
+11 votes
12 answers

Default parameters of XMS and XMX in JVM

You use these Java command-line parameters to ...READ MORE

Nov 13, 2018 in Java by Murali
235,130 views
+15 votes
20 answers

How can I convert String to JSON object in Java?

Hi @Daisy You can use Google gson  for more ...READ MORE

Feb 7, 2019 in Java by Suresh
• 720 points
167,178 views
+8 votes
13 answers

Unable to resolve this error: "javac is not recognized as an internal or external command"

Check your javac path on Windows using Windows Explorer C:\Program Files\Java\jdk1.7.0_02\bin and ...READ MORE

May 23, 2018 in Java by Rishabh
• 3,580 points
151,559 views
+2 votes
10 answers

How to import a jar file in Eclipse?

To import jar file in your Eclipse ...READ MORE

May 15, 2018 in Java by sharth
• 3,370 points
142,933 views
+2 votes
13 answers

Python AWS Boto3: How do i read files from S3 Bucket?

You can download the file from S3 ...READ MORE

Dec 7, 2018 in AWS by Jino
138,651 views
+2 votes
12 answers

“A Non-static method cannot be referenced from a static context” error

this method must be static so that it will exist even though the ...READ MORE

Jun 11, 2019 in Java by Neha
• 330 points
117,502 views
+9 votes
15 answers

How to automate gmail login process using selenium webdriver in java?

Check the below code: Here is the working ...READ MORE

Apr 24, 2018 in Selenium by Vardy
• 2,370 points
110,896 views
+2 votes
3 answers

Git push vs git push origin

In simple words git push command updates ...READ MORE

Apr 23, 2019 in Git & GitHub by Hiran
103,679 views
+1 vote
6 answers

How to fix this? ValueError: invalid literal for int() with base 10 error in Python

Hey, I tried to look for a few ...READ MORE

Jul 1 in Python by keshav
100,169 views
+1 vote
13 answers

How can I delete all the messages from a Kafka topic?

To delete all the messages from a Kafka topic.  There are many approach ...READ MORE

Jun 19 in Apache Kafka by Pawan
• 380 points
97,383 views
+1 vote
1 answer

Copying files from host to Docker container

For copying the files from the host ...READ MORE

Jul 18, 2018 in Docker by sunshine
• 1,260 points
84,559 views
+5 votes
6 answers

What exactly is the function of random.seed() in python?

The seed method is used to initialize the ...READ MORE

Oct 29, 2018 in Python by Rahul
79,683 views
+2 votes
11 answers

Unable to execute jar- file: “no main manifest attribute”

add a jar/manifest/attributes setting like this: apply plugin: ...READ MORE

Nov 27, 2018 in Java by krishti
78,639 views
+2 votes
11 answers

How to print array/ list without brackets in python?

print(*names, sep = ', ') This is what ...READ MORE

Dec 10, 2018 in Python by Sudo
75,518 views
+1 vote
11 answers

How to run multiple commands in docker at once?

Try this: docker run image bash -c "cd ...READ MORE

Apr 17, 2019 in Docker by anonymous

edited Apr 17, 2019 by Kalgi 73,738 views
+1 vote
11 answers

Communications link failure: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException

you mysql server instance is not running ...READ MORE

Jun 15, 2019 in Java by Encrypter Manyange
69,751 views
+1 vote
11 answers

How does java.net.SocketException: Connection reset happen ?

You can use wireshark to view the ...READ MORE

Dec 7, 2018 in Java by tushh
69,311 views
0 votes
3 answers

In Python, what is difference between Array and List?

Lists and arrays are used in Python ...READ MORE

Mar 15, 2019 in Python by Taj
• 1,060 points

edited Mar 18, 2019 by Omkar 68,086 views
+1 vote
2 answers

How to change/update cell value in Python Pandas dataframe?

You can use the at() method to ...READ MORE

Apr 8, 2019 in Python by Kunal
61,095 views
+1 vote
10 answers

Set environment variables in Jenkins

To add to @Omkar's answer, I would ...READ MORE

Dec 10, 2018 in Jenkins by Zoo
60,106 views
0 votes
2 answers

Filtering a row in Spark DataFrame based on matching values from a list

Use the function as following: var notFollowingList=List(9.8,7,6,3 ...READ MORE

Jun 5, 2018 in Apache Spark by Shubham
• 13,380 points
59,004 views
+1 vote
11 answers

How to send HTTP POST requests on Java?

How to invoke Thread dump analysis API? Invoking ...READ MORE

Jun 16, 2019 in Java by Jim
• 810 points

reshown Jun 17, 2019 by Vardhan 57,360 views
0 votes
2 answers

Jenkins and Docker : Build a Docker image using an jenkins pipeline and push it into docker registry.

In the illustration below, i have created a ...READ MORE

Aug 26, 2019 in Jenkins by Sirajul
• 54,260 points
55,995 views
0 votes
10 answers

What is the correct way to add external Jars to IntelliJ IDEA Project?

The best way is to add the ...READ MORE

Dec 10, 2018 in Java by Nabarupa
55,482 views
+5 votes
11 answers

Concatenate columns in apache spark dataframe

its late but this how you can ...READ MORE

Mar 21, 2019 in Apache Spark by anonymous
52,707 views
0 votes
10 answers

Creating an empty data.frame with only column names - R

fruit_Frame<-data.frame(Fruit=NA, Cost=NA, Quantity=NA)[-1,]; ...READ MORE

May 7 in Data Analytics by yxcv

edited May 8 by Gitika 52,462 views
0 votes
11 answers

How to create new column with function in Spark Dataframe?

val coder: (Int => String) = v ...READ MORE

Apr 4, 2019 in Apache Spark by anonymous

edited Apr 5, 2019 by Omkar 52,177 views
+4 votes
24 answers

What is an “Edge Location” in AWS?

Let us start with brief explanation to ...READ MORE

Apr 3, 2018 in Cloud Computing by brat_1
• 7,170 points
51,062 views
+1 vote
2 answers

Getting this error: “Element is not clickable at point”

There are 3 possible solutions for this: 1. ...READ MORE

Apr 20, 2018 in Selenium by king_kenny
• 3,710 points
50,522 views
+1 vote
10 answers

Iterate over a JSONObject?

You can use the following method to ...READ MORE

Dec 7, 2018 in Java by Shuvodip
47,531 views
+2 votes
5 answers

Error: dpkg frontend is locked by another process

First, find out the id of the process that ...READ MORE

Aug 7, 2019 in Linux Administration by Sirajul
• 54,260 points
46,744 views
+1 vote
1 answer

How can I use python to execute a curl command?

For sake of simplicity, maybe you should ...READ MORE

Oct 11, 2018 in Python by charlie_brown
• 7,770 points
46,227 views
+6 votes
15 answers

AWS VPC - What is the difference between Internet Gateway & NAT

Internet Gateway An Internet Gateway is a logical connection ...READ MORE

Apr 24, 2018 in AWS by Flying geek
• 3,210 points
45,886 views
+2 votes
6 answers

If conditional in docker file

You can use the test command RUN test ...READ MORE

Dec 10, 2018 in Docker by Shushant
44,097 views
0 votes
7 answers

How to replace null values in Spark DataFrame?

in spark 2.x you can directly use ...READ MORE

Mar 28 in Apache Spark by gaurav
43,457 views
+4 votes
11 answers

How do I delete my Google Cloud Platform Account?

How do I delete me cloud and ...READ MORE

Jan 18, 2019 in GCP by dodge123@yahoo.com
43,178 views
+1 vote
4 answers

How to run YML compose file?

You can run the following command to ...READ MORE

May 6, 2019 in DevOps & Agile by Mithin
42,028 views
0 votes
4 answers

How to remove NA values with dplyr::filter()

Can we create a alist as below ...READ MORE

Aug 5, 2019 in Data Analytics by anonymous
41,706 views
0 votes
11 answers

Java - sending HTTP parameters via POST method easily

You can write like this simply get ...READ MORE

Jul 7 in Java by anonymous
• 140 points
41,231 views
0 votes
4 answers

Printing a data.frame without index - Python

.tolist() function will remove index READ MORE

Mar 11, 2019 in Data Analytics by nishant thakur
40,313 views
+1 vote
3 answers

How do I execute multiple commands using docker-compose

You can also use the depends_on option ...READ MORE

Apr 22, 2019 in Docker by Kavya
40,084 views
+1 vote
3 answers

Python error "ERROR: Could not find a version that satisfies the requirement PyQt4 (from versions: none)"

You cannot install PyQt directly from pip. ...READ MORE

Jul 22, 2019 in Python by Bob
39,292 views
0 votes
5 answers

How to open a link in new tab of chrome browser using Selenium WebDriver?

You can open a new tab first. ...READ MORE

Nov 27, 2018 in Selenium by Shrikanth
39,102 views
+1 vote
2 answers

Error: selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH

You can also handle this error with ...READ MORE

Nov 27, 2018 in Selenium by Srujan
38,852 views
+2 votes
1 answer

Python: UnicodeDecodeError: "utf-8" codec can"t decode byte 0xa0 in position 10: invalid start byte

You have to use the encoding as latin1 ...READ MORE

Jul 11, 2019 in Python by Ritu
38,718 views
+2 votes
1 answer

UnicodeDecodeError: "utf-8" codec can't decode byte in position : invalid start byte

You have to use the encoding as latin1 ...READ MORE

Jul 23, 2019 in Python by Kunal
38,339 views
0 votes
4 answers

How to remove NA values from a Vector in R?

You can try na.omit() or na.exclude() too. ...READ MORE

Jul 31, 2019 in Data Analytics by anonymous
• 32,460 points
37,175 views
+4 votes
4 answers

Verifying whether an element present or visible in selenium Webdriver

Below code will help you: To check Element ...READ MORE

Apr 17, 2018 in Selenium by king_kenny
• 3,710 points
36,349 views
0 votes
1 answer

What does file permission 755 mean?

A 777 permission on the directory means that everyone has access ...READ MORE

Dec 21, 2018 in Linux Administration by Omkar
• 69,040 points
35,070 views