Trending questions in Edureka Community

+4 votes
17 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
 • 458,126 views
+12 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
 • 259,819 views
+8 votes
14 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 • 210,717 views
+15 votes
22 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 • 191,598 views
+4 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
 • 172,421 views
+1 vote
8 answers

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

Just for the record: >>> int('55063.000000') Traceback (most recent ...READ MORE

Aug 17 in Python by pakainfo
 • 200 points • 160,779 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 • 171,199 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 • 143,017 views
+2 votes
2 answers

Copying files from host to Docker container

P.S The docker cp command works similar to the ...READ MORE

Aug 28 in Docker by Pistle
 • 1,000 points • 128,323 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 • 119,144 views
+10 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
 • 2,360 points • 121,263 views
+3 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
 • 120,008 views
+1 vote
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
 • 1,080 points
edited Mar 18, 2019 by Omkar • 95,021 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
 • 99,201 views
+6 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
 • 90,770 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
 • 80,730 views
+2 votes
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 • 93,527 views
+1 vote
12 answers

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

I had the same problem.then i did ...READ MORE

Aug 15 in Java by Bhuvana
 • 82,403 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
 • 58,130 points • 80,728 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
 • 87,265 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
 • 91,442 views
+2 votes
11 answers

Set environment variables in Jenkins

You can try something like this stages { ...READ MORE

Dec 10, 2018 in Jenkins by Celia
 • 71,295 views
0 votes
3 answers

Python error "IndentationError: expected an indented block"

IndentationError:  what is the mean READ MORE

5 days ago in Python by anonymous
 • 140 points • 62,512 views
+2 votes
6 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
 • 58,130 points • 63,759 views
0 votes
11 answers

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

You can also create a "lib" folder ...READ MORE

Jul 17 in Java by Zeenu
 • 70,898 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 • 73,926 views
+3 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 • 66,157 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
 • 13,450 points • 65,879 views
0 votes
2 answers

How to use not equal operator in python

You can use "!=" and "is not" ...READ MORE

Mar 17 in Python by rahul
 • 360 points • 61,423 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
 • 59,598 views
0 votes
12 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 • 58,531 views
+1 vote
3 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 • 57,966 views
+8 votes
16 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
 • 3,260 points • 56,456 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
 • 57,200 views
+7 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 • 60,635 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
 • 65,088 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
 • 50,736 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 • 54,366 views
0 votes
3 answers

Selenium Exception error -Element is not clickable at point (x, y). Other element would receive the click

If waitings for element, sleeps and oher ...READ MORE

Dec 12, 2019 in Selenium by Douglas
 • 44,640 views
0 votes
7 answers

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

Try this once driver.findElement(By.id("id")).sendKeys(Keys.CONT ...READ MORE

Sep 5 in Selenium by Sri
 • 2,970 points • 48,571 views
+2 votes
1 answer

what is the key difference between Declarative pipeline and scripted pipeliine

The key difference between Declarative pipeline and Scripted pipeline ...READ MORE

Aug 13, 2019 in Jenkins by Sirajul
 • 58,130 points • 47,297 views
+2 votes
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
 • 54,145 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
 • 49,136 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
 • 69,030 points • 54,710 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
 • 57,225 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
 • 57,283 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
 • 32,490 points • 53,831 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
 • 7,780 points • 54,839 views
+2 votes
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
 • 50,316 views
0 votes
4 answers

How to specify "ENTER" button functionality in Selenium WebDriver code?

using OpenQA.Selenium.Interactions; Actions builder = new Actions(driver); ...READ MORE

Feb 12, 2019 in Selenium by anonymous
 • 42,796 views
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