Programming Articles - Page 2088 of 3363

In this article, we will learn about the differences between the orTimeout() and the completeOnTimeout() methods in Java. Both the orTimeout() and completeOnTimeout() methods are defined in the CompletableFuture class, and these two methods were introduced in Java 9. CompletableFuture class The CompletableFuture class, introduced in Java 8, represents a Future that can have its value and status set explicitly. It also supports dependent functions and actions that are triggered upon the completion of the future. In Java 9, the CompletableFuture API received further enhancements. The following are some common methods of the CompletableFuture class: ... Read More

In this article, we will learn to use the ofNullable() method of Stream in Java 9. We will first go through the Stream class, after that we will learn about the ofNullable() method along with its syntax and real-world use cases. Stream Class Stream was introduced in Java 8, the Stream API is used to process collections of objects. It represents a sequence of elements that support various operations to perform computations in parallel. Creating an instance of a stream: Stream stream; A stream is not a type of data structure, it takes input from Collections, Arrays, etc. The ofNullable() ... Read More

In this article, we will learn to create an unmodifiable Map in Java 9. First, we will learn about Map and Unmodifiable Map and after that we will be knowing the different ways through which we can create an unmodifiable map (Map.of method and unmodifiableMap() Method). Map In Java, a Map is an interface in the Collections framework used to store data in the form of key-value pairs. Each key in the map is unique and maps to some value. Some of the implementations of the Map interface are: HashMap ... Read More

In this article, we will learn about the new methods that have been added to the Arrays class in Java 9. First, we will learn about arrays, and then the new methods added to the equals(), compare(), and mismatch() methods with examples. Arrays Java provides a data structure called the Array, and they are used to store multiple values of the same datatype in a single variable. The Arrays class can contain various methods for manipulating arrays and also contains static factory methods that allow arrays to view as a list. Creating an instance of an Array with a variable ... Read More

In this article, we will learn to create an unmodifiable Set in Java 9. We will be learning about Set and unmodifiable Set, and will be learning different ways of creating an unmodifiable Set(Set.of() Method and unmodifiableSet() Method). Set In Java, a Set is an interface that inherits the Collection interface and contains no duplicate elements. A Set interface has methods to add, delete, and check the existence of an element. Some of the implementations of the Set interface are: HashSet TreeSet LinkedHashSet What is an ... Read More

The Python dictionary has key and value pairs. In some situation we will need the items of the dictionary to be sorted according to the keys. In this article we'll see the different ways to get a sorted output from the items in the dictionary.Using Operator ModuleThe Operator module has itemgetter function which can take 0 as the index of input parameter for the keys of the dictionary. We apply the sorted function on top of itemgetter and get the sorted output.Example Live Demodict = {12 : 'Mon', 21 : 'Tue', 17: 'Wed'} import operator print("Given dictionary", str(dict)) print ("sorted order ... Read More

Tkinter is the GUI building library of python. In this article we will see how we can create a collapsible pane. They are usefult when we have some large amount of data to be displayed over a GUI canvas but we do not want to be displayed always. It is made collapsible so that it can be displayed as and when needed.The below program creates the collapsible pane where we see the result both after expanding and contracting the arrow. The code comments indicate the approach we take at each step.Examplefrom tkinter import * import tkinter as tk from tkinter ... Read More

Many times we use a method called data smoothing to make the data proper and qualitative for statistical analysis. During the smoking process we define a range also called bin and any data value within the range is made to fit into the bin. This is called the binning method. Below is an example of binning. Then we will see how we can achieve the binning method using a Python program.Binning ExampleLet’s take a series of numbers. Find the maximum and minimum values. Decide on the number of bins we need depending on how many data points the analysis needs. ... Read More

The ASCII text can be used to display many stylish texts by using the module pyfiglet. After installing this module we can use it to control the font that can be used to display the result. In the below program we see various results by choosing various font types.Example# import pyfiglet module import pyfiglet #Text in default font out = pyfiglet.figlet_format("Point") print(out)OutputRunning the above code gives us the following result −Example# import pyfiglet module import pyfiglet #Text in slant font out = pyfiglet.figlet_format("Point", font="slant") print(out)OutputRunning the above code gives us the following result −Example# import pyfiglet module import pyfiglet #Text ... Read More

In this article, we will learn how to add a constant K value to each element in a Python list of integers. A list is a data type in Python that stores a sequence of items separated by commas, like this − List = [item1, item2, item3…] Suppose we have a list of integers called "a" and a constant value "k." We need to add this "k" to each item in the "a" list. For example − Input: a = [5, 10, 15, 20] k = 5 Output: #On adding 5 to each element of the ... Read More