Programming Articles - Page 3318 of 3366

To check to find whether a given array contains three consecutive dates:Convert the given array into a list of type LocalDate.Using the methods of the LocalDate class compare ith, i+1th and i+1th, i+2th elements of the list if equal the list contain 3 consecutive elements.ExampleLive Demoimport java.time.LocalDate; import java.time.Month; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.List; public class ConsicutiveDate {    public static void main(String args[]) {       String[] dates = {"5/12/2017", "6/12/2017", "7/12/2017"};       List localDateList = new ArrayList();       for (int i = 0; i

In Python, when working with files and directories, we may often need to get a list of subdirectories within a specific location, especially the current working directory. In this article, we are going to use the different methods available in Python to get a list of all subdirectories in the current directory. Using os Module While working with files, one of the most widely used approaches is using os module. This module provides a way to interact with the operating system to perform tasks such as navigating directories, reading file structures, and more. In this module, we have a ... Read More

You can convert an array list of strings to an array list of integers as:ExampleLive Demoimport java.util.ArrayList; import java.util.List; import java.util.stream.Collectors; public class LamdaExpressions {    public static void main(String args[]) {       ArrayList list = new ArrayList();       list.add("123");       list.add("223");       list.add("323");       list.add("334");       List listInteger =          list.stream().map(s -> Integer.parseInt(s)).collect(Collectors.toList());       System.out.println(listInteger);    } }Output[123, 223, 323, 334]

ExampleLive Demoimport java.util.Arrays; public class ArrayWithinAnArray{    public static void main(String args[]) {       int[] myArray1 = {23, 56, 78, 91};       int[] myArray2 = {123, 156, 178, 191};       int[] myArray3 = {223, 256, 278, 291};       int[] myArray4 = {323, 356, 378, 391};       int [][] arrayOfArrays = {myArray1, myArray2, myArray3, myArray4};       System.out.println(Arrays.deepToString(arrayOfArrays));    } }Output[[23, 56, 78, 91], [123, 156, 178, 191], [223, 256, 278, 291], [323, 356, 378, 391]]

If a class is declared final, you cannot inherit it. If you try it gives you a compile-time error as − Example final class Super { private int data = 30; } public class Sub extends Sub { public static void main(String args[]){ } } Output Exception in thread "main" java.lang.Error: Unresolved compilation problem: at Sub.main(Sub.java:7)

The path of a current file is defined with the help of directory hierarchy; and it contains the backtracked path from the current file to the root directory this file is present in. For instance, consider a file “my_file” belongs to a directory “my_directory”, the path for this file is defined as given below ./my_directory/my_file The directory, sub-directory and the file are all separated using the “/” separator in the path. Therefore, to get current file's full path, you can use the os.path.abspath() function. If you want only the directory path, you can call os.path.dirname() method. Using os.path.abspath() Method ... Read More

In Python, the __init__.py is a special file in python packages. It is used to indicate that how a directory should be treated. When Python encounters a directory during an import, first it looks for the __init__.py file to determine how to initialize the package and what code should be executed during the import. In python 3.3 version, the __init__.py was introduced with the feature of creating a package with the namespace. Let's understand the purpose of the __init__.py file - It makes the directory a Python package so the interpreter can find the module ... Read More

A directory is simply defined as a collection of subdirectories and single files or either one of them. These subdirectories are separated using a "/" operator in a directory hierarchy. A directory hierarchy is constructed by organizing all the files and subdirectories within a main directory and also known as the "root" directory. Calculating the total size of a directory, i.e., all its files and subdirectories which is a common task in Python, especially when dealing with disk usage monitoring, backup management, or cleaning up storage. Python provides multiple ways to accomplish this efficiently using built-in modules such as os ... Read More

In some applications, we have to find the files on our computer programmatically to make use of out time. Python provides several powerful libraries to search and locate files by making this task straightforward and efficient. In this article, we are going to see the different methods to find a file in our system using Python. Using the os Module The os module has a method os.walk(), which is used to search for a file in the directories and their subdirectories. This method returns the file paths in a directory which allows the user to search for a specific file. ... Read More

The site-packages directory in python, is the place where third-party libraries and packages are installed. Knowning the site-packeges location is useful for debugging, verifying installations or inspecting package contents. This directory may vary depending on our operating system, Python version or based on the virtual environment we are using. In this article, we are going to explore the different ways to find the location of site packages directory in our working environments. Using site.getsitepackages() The getsitepackages() function of the site module, returns a list of global site-packages directories. This method may not work inside virtual environments and could be unavailable ... Read More