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Having problems in Selenium example code java

First Error Screen
Second Error Screen
I am running the selenium example code:
import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.WebDriverWait;
import static org.openqa.selenium.support.ui.ExpectedConditions.presenceOfElementLocated;
import java.time.Duration;
public class HelloSelenium {
public static void main(String[] args) {
WebDriver driver = new FirefoxDriver();
WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(10));
try {
driver.get("https://google.com/ncr");
driver.findElement(By.name("q")).sendKeys("cheese" + Keys.ENTER);
WebElement firstResult = wait.until(presenceOfElementLocated(By.cssSelector("h3>div")));
System.out.println(firstResult.getAttribute("textContent"));
} finally {
driver.quit();
}
}
}
And getting the errors as shown in the screenshots above.
Note that the action is being performed but the last statement in the try block isn't printing the attribute of the firstElement. I understand the problem is not very easy to read but solving should be interesting.
Also I am using the geckodriver (for Firefox) in Manjaro.
And I am using gradle.

It states the error on the debug window.
WebElement firstResult = wait.until(presenceOfElementLocated(By.cssSelector("h3>div")));
An exception is thrown because there is a timeout on the "wait.until" function.
It doesn't find the element you are searching for.
Your css selector is invalid.

How to invoke Explicit wait to click on the element with text as My Account through Selenium and Java within the website https://www.phptravels.net

I am writing the following code to click on the element with text as My Account. It is showing "element not visible". To resolve the issue I am trying expected wait, but it is being timed out. Is there any way around. You can find my code below:
package com.php.travels;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
public class LogIn {
public static void main(String[] args) {
System.setProperty(
"webdriver.chrome.driver",
"/Users/owner/desktop/chromedriver");
WebDriver driver = new ChromeDriver();
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
driver.get("https://www.phptravels.net");
try {
WebDriverWait wait=new WebDriverWait(driver, 20);
wait.until(ExpectedConditions.visibilityOfElementLocated(
By.xpath("//li[#id ='li_myaccount']/a"))
).click();
}
catch(Throwable t){
System.out.println("The execption is: " + t);
}
finally {
System.out.println("If no exception tell me now");
}
}
} // end class

To click() on the element with text as My Account instead of visibilityOfElementLocated() you need to induce WebDriverWait through elementToBeClickable() method and you can use the following solution:
Code Block:
System.setProperty("webdriver.gecko.driver", "C:\\Utility\\BrowserDrivers\\geckodriver.exe");
WebDriver driver=new FirefoxDriver();
driver.get("http://www.phptravels.net");
new WebDriverWait(driver, 20).until(ExpectedConditions.elementToBeClickable(By.xpath("//nav[#class='navbar navbar-default']//li[#id='li_myaccount']/a[normalize-space()='My Account']"))).click();
Browser Snapshot:

Selenium WebElement.click() refreshes the page instead of going to next screen. No response when WebElement.submit() is used

I am learning Selenium and using jetblue.com for test. When I click on "FIND IT" button in homepage by providing all the required values, the page simply refreshes instead of going to the next screen. Can anyone advise where I am going wrong?
I tried using .click() and submit(). but not the control does not go the next page
package testCases;
import java.util.List;
import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.interactions.Actions;
import org.testng.annotations.Test;
public class Calendar {
#Test
public void calControl() throws InterruptedException
{
System.setProperty("webdriver.chrome.driver","C:\\chromedriver_win32\\chromedriver.exe");
ChromeOptions options = new ChromeOptions();
options.addArguments("disable-infobars");
options.addArguments("--start-maximized");
WebDriver driver= new ChromeDriver(options);
driver.get("https://www.jetblue.com");
// driver.findElement(By.className("input-group-btn")).click();
Thread.sleep(3000);
// driver.findElement(By.cssSelector("button[class='btn pull-right']")).click();
List<WebElement> count = driver.findElements(By.className("input-group-btn"));
int count1 = driver.findElements(By.className("input-group-btn")).size();
count.get(0).click();
Thread.sleep(3000);
driver.findElement(By.xpath("//table[#class='calendar']//td//span[.=27]")).click();
System.out.println(count1);
for (int i = 0;i<count1;i++)
{
System.out.println(count.get(i).toString());
}
Thread.sleep(3000);
count.get(1).click();
Thread.sleep(3000);
//driver.findElement(By.xpath("//button/span[#class='foreground-sprite-calendarforward']")).click();
List<WebElement> pullRight = driver.findElements(By.cssSelector("button[class='btn pull-right']"));
int count2 = driver.findElements(By.cssSelector("button[class='btn pull-right']")).size();
do
{
pullRight.get(1).click();
} while (driver.findElement(By.xpath("//div/strong[.='March 2018']")).isDisplayed()==false);
List<WebElement> returnDate = driver.findElements(By.xpath("//table[#class='calendar']//td//span[.=8]"));
int returnCount = driver.findElements(By.xpath("//table[#class='calendar']//td//span[.=3]")).size();
returnDate.get(1).click();
//driver.findElement(By.xpath("//input[#class='piejs']")).click(); Find Button
WebElement from = driver.findElement(By.id("jbBookerDepart"));
from.click();
Thread.sleep(2000);
from.sendKeys("DXB");
from.sendKeys(Keys.TAB);
Thread.sleep(2000);
WebElement to = driver.findElement(By.id("jbBookerArrive"));
to.click();
Thread.sleep(2000);
to.sendKeys("SFO");
to.sendKeys(Keys.TAB);
Thread.sleep(2000);
WebElement findButton = driver.findElement(By.xpath("//*[#id='login-search-wrap']/div[3]/div/div[3]/form/input[5]"));
//System.out.println("Value of button:" +driver.findElement(By.xpath("//*[#id='login-search-wrap']/div[3]/div/div[3]/form/input[5]")).toString());
/*Actions a = new Actions(driver);
//a.click(findButton).build().perform();
a.clickAndHold(findButton).doubleClick().build().perform();*/
/*driver.findElement(By.cssSelector("input[value='Find it']")).submit();
driver.findElement(By.xpath("input[value='Find it']")).submit();*/
System.out.println(findButton.isEnabled());
findButton.click();
Thread.sleep(5000);
}
}

That page is probably using anti-selenium software. I debugged your code several times, and here are my observations - I tried do perform some operations by hand, and some by WebDriver, and the result is: If ANY operation is performed by WebDriver, the form will not submit. That even includes opening of the page. They probably set some flag whenever an automated software is performing any action on their page.
Have a look at this answer. I don't know what anti-bot method they may be using, but this could be the first step.

Selection menu from context click

I'm facing an issue while automating right-click and then selecting any options from it.
The code is working fine in Firefox but not in Chrome.
There, it seems it is just showing a right click but doing a normal click on the element.
I am using chromedriver 2.21 and Selenium 2.50.
package mentor.qa.selenium;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.WebDriverWait;
public class Stack {
public static void main(String[] args) throws InterruptedException {
System.setProperty("webdriver.chrome.driver", "C:\\Selenium\\chromedriver.exe");
// WebDriver driver = new FirefoxDriver();
WebDriver driver = new ChromeDriver();
driver.get("http://www.google.com/");
WebDriverWait wait = new WebDriverWait(driver, 30);
Thread.sleep(3000);
WebElement b = driver.findElement(By.linkText("About"));
Actions action = new Actions(driver);
action.moveToElement(b);
Thread.sleep(4000);
// Keys move = Keys.ARROW_DOWN;
// action.contextClick(b).sendKeys(move).sendKeys(Keys.ENTER).build().perform();
action.contextClick(b).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.ARROW_DOWN).build().perform();
Thread.sleep(4000);
action.click().build().perform();
// action.keyDown(Keys.CONTROL).click().build().perform();
// action.contextClick(b).sendKeys(Keys.CONTROL).keyDown(Keys.CONTROL).sendKeys(String.valueOf(d)).sendKeys(Keys.ENTER).build().perform();
// action.click();
// action.contextClick(b);
Thread.sleep(4000);
// action.sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.RETURN).build().perform();
// driver.findElement(By.partialLinkText("new tab")).click();
// action.sendKeys(Keys.RETURN).perform();
Thread.sleep(4000);
//driver.quit();
}
}

Selenium and Facebook Post Button: How to click facebook post button in java using selenium?

driver.get("https://www.facebook.com/sachin.aryal");
driver.findElement(By.name("xhpc_message_text")).sendKeys("Testing Java and Selenium");
driver.findElement(By.xpath("//*[#id='u_0_1a']/div/div[6]/div/ul/li[2]/button")).click();
The last line of the code is not working. How do I set the XPath of the Post button on facebook?

I know you already marked your own answer but it's not the proper way to do this. There are ways built into Selenium to do waits, e.g. wait for an element to be clickable. This method is the proper and more efficient way to do this.
driver.get("https://www.facebook.com/sachin-aryal/");
driver.findElement(By.name("xhpc_message_text")).sendKeys("Testing Java and Selenium");
WebDriverWait wait = new WebDriverWait(driver, 10);
wait.until(ExpectedConditions.elementToBeClickable(By.xpath("//button/span[.=\"Post\"]"))).click();

I noticed it works when you first scroll into view the button, try adding before the click on post the:
((JavascriptExecutor)driver).executeScript("window.scrollBy(0,259)","");

Try the below code .. it must work for you..
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
public class Facebook_login {
public static void main(String[] args) throws InterruptedException {
String user_name = "facebook_user_name";
String pwd = "facebook_password";
WebDriver driver = new FirefoxDriver();
driver.manage().window().maximize();
driver.get("https://www.facebook.com");
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
driver.findElement(By.name("email")).clear();
driver.findElement(By.name("email")).sendKeys(user_name);
driver.findElement(By.name("pass")).clear();
driver.findElement(By.name("pass")).sendKeys(pwd);
driver.findElement(By.xpath("//input[contains(#value,'Log In')]")).click();
Thread.sleep(10000);
System.out.println("logged in successfully");
WebElement notification = driver.findElement(By.xpath("//a[contains(#action,'cancel')]"));
if(notification.isDisplayed()) {
System.out.println("Notification is present");
notification.click();
}
WebElement status =driver.findElement(By.xpath("//textarea[#name='xhpc_message']"));
status.sendKeys("Hello");
Thread.sleep(3000);
WebDriverWait wait = new WebDriverWait(driver,30);
wait.until(ExpectedConditions.elementToBeClickable(By.xpath("//span[text()='Post']"))).click();
}
}