Explain about project framework ? Whatvare the opps concept ? Different classes and interfaces in collection framework? Write program to reverse a string ? Different locators in selenium ? Exceptions in selenium ? What is synchronization ?

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Questions related to automation testing and Selenium framework.

Project framework is a structure that defines how the automation testing project will be organized and executed.
OOPS concepts include inheritance, polymorphism, encapsulation, and abstraction.
Collection framework includes classes like ArrayList, LinkedList, HashSet, and interfaces like List, Set, Map.
Example program to reverse a string: String str = "Hello World"; StringBuilder sb = new StringBuilder(str); sb.reverse(); System.out.println(sb);
Different locators in Selenium include ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector, and XPath.
Exceptions in Selenium include NoSuchElementException, TimeoutException, ElementNotVisibleException, and StaleElementReferenceException.
Synchronization is used to manage the timing between the test script and the application under test to ensure that the script waits for the application to load or respond before proceeding.