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TraitsTraits are similar to interfaces in Java and are created using trait keyword.Abstract ClassAbstract Class is similar to abstract classes in Java and are created using abstract keyword.Example Live DemoFollowing is the program in Scala to show the usage of Traits and Abstract Classes.trait SampleTrait { // Abstract method def test // Non-Abstract method def tutorials() { println("Traits tutorials") } } abstract class SampleAbstractClass { // Abstract method def test // Non-abstract meythod def tutorials() { println("Abstract Class tutorial") } } ... Read More
Problem StatementWith a given array of integers where all elements are less than 1000000. Find the difference between the largest and the smallest primes in an array.ExampleArray: [ 1, 2, 3, 4, 5 ] Largest Prime Number = 5 Smallest Prime Number = 2 Difference = 5 - 3 = 2.SolutionUse Sieve of Eratosthenes approach, which is an efficient way to find out all prime numbers smaller than a given number. Then we will figure out the largest and smallest prime number to get the required difference.Example Live DemoFollowing is the program in Java to find the required output.public ... Read More
Many times we need to use passwords in PowerShell and need to pass it to the credential parameter and a password should be always a secure string, not a plain text. There are few methods to encrypt the password as mentioned below.a) Get-Credential FormatWe have one method where we can store the username and password is through cmdlet Get-Credential. It will provide a GUI prompt. You can store this password into a variable and use it later in the command.$cred = Get-CredentialCredentials are stored into $cred variable. Here is the value of the variable. output below.PS C:\WINDOWS\system32> $cred UserName ... Read More
In this post we need to enter the string at the beginning of all items in a list. For ex: We're given string = "Tutorials_Point" and List contains multiple element such as "1", "2" etc. So in this we need to add Tutorials_Point in front of "1", "2" and so on.ExampleAproach 1 Live Demosample_list = [1, 2, 3] print(['Tutorials_Point{0}'.format(i) for i in sample_list])Output//['Tutorials_Point1', 'Tutorials_Point2', 'Tutorials_Point3']Approach 2 Live Demosample_list = [1, 2, 3] sample_str = 'Tutorials_Point' sample_str += '{0}' sample_list = ((map(sample_str.format, sample_list))) print(sample_list)Output//['Tutorials_Point1', 'Tutorials_Point2', 'Tutorials_Point3']Read More
Python int() function converts the specified value into an integer number.The int() function will returns an integer object constructed from a number or string let say x, or return 0 if no argum ents are specified.Syntaxint(value, base) int(x, base=10)value = A number or a string that can be converted into an integer numberbase = A number representing the number format. Default value − 10Example# int() for integers int(10) 10 int(20) 20 # int() for floating point numbers int(11.2) 11 int(9.9e5) 990000
A list also the extend() method, which appends items from the list you pass as an argument. extend() − Python list method extend() appends the contents of seq to list. You can read more about it here "https://www.tutorialspoint.com/python/list_append.htm"Now let us see hands onExample Live Demo#append first_list = [1, 2, 3, 4, 5] second_list = [6, 7, 8, 9, 10] first_list.append(second_list) # print result using append print("The list pattern using append is : " + str(first_list)) #extend third_list_ = [11, 12, 13, 14, 15] fourth_list = [16, 17, 18, 19, 20] third_list_.extend(fourth_list) print("The list pattern using extend is : " + str(third_list_))OutputThe ... Read More
In this we are going to use List Comprehension with enumerate() Python provides compact syntax for deriving one list from another. These expressions are called list comprehensions.List comprehensions are one of the most powerful tools in Python. Python’s list comprehension is an example of the language’s support for functional programming concepts. You can read more about it here "www.tutorialspoint.com/python-list-comprehension" The enumerate() method adds counter to the iterable. You can read more about enumerate here " www.tutorialspoint.com/enumerate-in-python"Example Live Demo# declare list of integers my_list = [1, 2, 3] # printing the value print("Printing my_list list : " + str(my_list)) response = [value ... Read More
You can display a text element/image on the User Interface using the Label component. It is a not editable text control, mostly used to specify the purpose of other nodes in the application.In JavaFX, you can create a label by instantiating the javafx.scene.control.Label class.Setting mnemonicA mnemonic is a number or character, in the menu title of User interface component (button, text field, etc.) typically with an underscore. If you press this character along with the Alt key the respective menu item will be focused.To create a mnemonic −Create any node by instantiating its respective class.Create a label to associate the ... Read More
In JavaFX, you can create a label by instantiating the javafx.scene.control.Label class. This class provides a method named labelFor(). Using this method, you can set the current label as a label for another control node.This method comes handy while setting, mnemonics, and accelerator parsing.ExampleIn the following JavaFX example, we have created a label, a text field, and a button. Using the labelFor() method we have associated the label (Text) with a text field, enabling the mnemonic parsing (T). Therefore, on the output window, if you press Alt + t, the text field will be focused.import javafx.application.Application; import javafx.geometry.Insets; import javafx.scene.Scene; ... Read More
You can display a text element/image on the User Interface using the Label component. It is a not editable text control, mostly used to specify the purpose of other nodes in the application.In JavaFX, you can create a label by instantiating the javafx.scene.control.Label class.Just like a text node you can set the desired font to the text node in JavaFX using the setFont() method and, you can add color to it using the setFill() method.To create a label −Instantiate the Label class.Set the required properties to it.Add the label to the scene.Exampleimport javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.control.Label; import ... Read More