What is NoSuchElementException in Java?

What is NoSuchElementException in Java?

The NoSuchElementException is an unchecked exception in Java that can be thrown by various accessor methods to indicate that the element being requested does not exist. Since the NoSuchElementException is thrown at runtime, it does not need to be declared in the throws clause of a method or constructor.

How do I fix NoSuchElementException?

NoSuchElementException in Java can come while using Iterator or Enumeration or StringTokenizer. Best way to fix NoSuchElementException in java is to avoid it by checking Iterator with hashNext(), Enumeration with hashMoreElements() and StringTokenizer with hashMoreTokens().

What do you control NoSuchElementException with?

HOW TO HANDLE NOSUCHELEMENT EXCEPTION IN JAVA SELENIUM

1. Open the chrome browser.
2. Enter the URL of the https://demo.actitime.com/
3. Write the code to Click on login button.
4. driver. findElement(By. xpath(“//div[. =’Login’]”)). click();
5. It throws NoSuchElementException as Xpath expression that you have copied is wrong.

Is NoSuchElementException a runtime exception?

The NoSuchElementException is a subclass of RuntimeException and implements the Serializable interface.

How do I avoid Java Util NoSuchElementException?

So in order to avoid this NoSuchElementException we need to always call,

1. Iterator. hasNext() or.
2. Enumeration. hasMoreElements() or.
3. hasMoreToken() method before calling next( ) or nextElement or nextToken() method.

How do you write a Scanner in Java?

Example 1

1. import java.util.*;
2. public class ScannerExample {
3. public static void main(String args[]){
4. Scanner in = new Scanner(System.in);
5. System.out.print(“Enter your name: “);
6. String name = in.nextLine();
7. System.out.println(“Name is: ” + name);
8. in.close();

What is the causes of a NoSuchElementException?

The NoSuchElementException in Java is thrown when one tries to access an iterable beyond its maximum limit. The exception indicates that there are no more elements remaining to iterate over ​in an enumeration.

How do you handle Java Util NoSuchElementException no value present?

Multiple ways to fix java. util. NoSuchElementException: No value present error in java

1. Iterated an array using stream API in java8, Stream is another way to iterate the enumerated object to improve performance.
2. It returns the Stream object using the stream() method.

Why do we get NoSuchElementException in Selenium?

NoSuchElementException is one of the most common exceptions in Selenium WebDriver, and it is thrown when an HTML element cannot be found. A NoSuchElementException occurs when the Selenium locator strategy defined is unable to find the desired HTML element in the web page.

What is a web driver?

WebDriver is a remote control interface that enables introspection and control of user agents. It provides a platform- and language-neutral wire protocol as a way for out-of-process programs to remotely instruct the behavior of web browsers.

How do I import a Java Util Scanner?

Import and Scanner in Java – YouTube

How do I scan to write to a file?

We will write content to a file using FileWriter class. Then, we will read content from as file using Scanner class.
…
Important methods of Scanner class (Java IO):

What is NoSuchElementException selenium?

A NoSuchElementException occurs when the Selenium locator strategy defined is unable to find the desired HTML element in the web page. NoSuchElementException derives from NotFoundException and is thrown by WebDriver. findElement and WebElement. findElement as below: import org.

Is Java Util NoSuchElementException no value present?

The java. util. NoSuchElementException: No value present error occurred in spring boot application when an entity object is being attempted to get it from an optional object. If the hibernate returns an empty optional object, this exception Servlet.

How do I stop NoSuchElementException in selenium?

#1) org.openqa.selenium.NoSuchElementException

In this case, the exception is thrown even if the element is not loaded. Avoiding-And-Handling: Try giving a wait command. Example: The wait command below waits 10 seconds for the presence of web element with id ‘submit’. Then it tries to click it.

How do I press a key in Selenium?

sendKeys(Keys. RETURN); Similarly, we can use Keys enum for different non-text keys and pass them to the sendKeys method.
Press Enter/Return Key in Selenium.

How do you remove a stale element exception?

How To Overcome Stale Element Reference Exception in Selenium:

1. Solution 1: Refreshing the web page.
2. Solution 2: Using Try Catch Block.
3. Solution 3: Using ExpectedConditions. refreshed.
4. Solution 4: Using POM.

Why WebDriver is an API?

The WebDriver API is primarily intended to allow developers to write tests that automate a browser from a separate controlling process, but may also be implemented in such a way as to allow in-browser scripts to control a — possibly separate — browser.

Which is the fastest WebDriver?

HTML UnitDriver
HTML UnitDriver is the most light weight and fastest implementation headless browser for of WebDriver. It is based on HtmlUnit. It is known as Headless Browser Driver.

Where is the Java util package?

util. *, these live in the “lib” directory under wherever your Java Runtime Environment (JRE) is installed. In there, you should see files like rt. jar which contains the core Java classes and charsets.

What is import Java Util?

Ans. It means import all the classes and interfaces within java. util package and make them available to use within the current class or interface. This is shorthand wild card annotation for importing all classes within a particular package.

Can you use Scanner to write a file in Java?

Scanner can’t be used for writing purposes, only reading.

How do you read and write to a text file in Java?

Read/Write text files. Read text file line by line. List files and directories. Copy File or Directory.
2. Writer, OutputStreamWriter, FileWriter and BufferedWriter

1. write(int): writes a single character.
2. write(char[]): writes an array of characters.
3. write(String): writes a string.
4. close(): closes the stream.

What is XPath in Selenium?

XPath in Selenium is a technique that allows you to navigate the structure of a webpage’s HTML. XPath is a syntax for finding elements on web pages. Using UXPath in Selenium helps find elements that are not found by locators such as ID, class, or name. XPath in Selenium can be used on both HTML and XML documents.

What are optional in Java?

Optional is a container object used to contain not-null objects. Optional object is used to represent null with absent value. This class has various utility methods to facilitate code to handle values as ‘available’ or ‘not available’ instead of checking null values.