Simple Program In Java

 
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Simple program in java netbeans

Common CommandsInstantiating Web ElementsInstead of using the long 'driver.findElement(By.locator)' syntax every time you will access a particular element, we can instantiate a WebElement object for it. The WebElement class is contained in the 'org.openqa.selenium.' package.Clicking on an ElementClicking is perhaps the most common way of interacting with web elements. The click method is used to simulate the clicking of any element. The following example shows how click was used to click on Mercury Tours' 'Sign-In' button.Following things must be noted when using the click method. WaitsThere are two kinds of waits.

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Implicit wait - used to set the default waiting time throughout the program. Explicit wait - used to set the waiting time for a particular instance onlyImplicit Wait. It is simpler to code than Explicit Waits. It is usually declared in the instantiation part of the code. You will only need one additional package to import.To start using an implicit wait, you would have to import this package into your code.Then on the instantiation part of your code, add this.Explicit WaitExplicit waits are done using the WebDriverWait and ExpectedCondition classes.

For the following example, we shall wait up to 10 seconds for an element whose id is 'username' to become visible before proceeding to the next command. Here are the steps.Step 1Import these two packages:Step 2Declare a WebDriverWait variable.

In this example, we will use 'myWaitVar' as the name of the variable.Step 3Use myWaitVar with ExpectedConditions on portions where you need the explicit wait to occur. In this case, we will use explicit wait on the 'username' (Mercury Tours HomePage) input before we type the text 'tutorial' onto it. Summary. To start using the WebDriver API, you must import at least these two packages. org.openqa.selenium. org.openqa.selenium.firefox.FirefoxDriver. The get method is the equivalent of Selenium IDE's 'open' command.

Locating elements in WebDriver is done by using the findElement method. The following are the available options for locating elements in WebDriver:. By.

ClassName. By. Airbrushing and weathering techniques pdf. CssSelector. By. LinkText.

By. PartialLinkText. By. Xpath. The By.cssSelector does not support the 'contains' feature. You can instantiate an element using the WebElement class. Clicking on an element is done by using the click method.

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WebDriver provides these useful get commands:. get. getTitle. getPageSource. getCurrentUrl. getText. WebDriver provides these useful navigation commands.

navigate.forward. navigate.back. navigate.to. navigate.refresh. The close and quit methods are used to close browser windows.

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Close is used to close a single window; while quit is used to close all windows associated to the parent window that the WebDriver object was controlling. The switchTo.frame and switchTo.alert methods are used to direct WebDriver's focus onto a frame or alert, respectively. Implicit waits are used to set the waiting time throughout the program, while explicit waits are used only on specific portions. You can use the isEnabled, isDisplayed,isSelected, and a combination of WebDriverWait and ExpectedConditions methods when verifying the state of an element.

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When we consider a Java program, it can be defined as a collection of objects that communicate via invoking each other's methods. Let us now briefly look into what do class, object, methods, and instance variables mean.Object − Objects have states and behaviors. Example: A dog has states - color, name, breed as well as behavior such as wagging their tail, barking, eating. An object is an instance of a class.Class − A class can be defined as a template/blueprint that describes the behavior/state that the object of its type supports.Methods − A method is basically a behavior.

A class can contain many methods. It is in methods where the logics are written, data is manipulated and all the actions are executed.Instance Variables − Each object has its unique set of instance variables. An object's state is created by the values assigned to these instance variables.First Java ProgramLet us look at a simple code that will print the words Hello World.