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In this article, we will learn to sort a JTable on a particular column in Java. Data sorting in a JTable is something that most Java Swing applications require. If the users can sort table data by clicking on column headers, it improves the experience greatly. What is a JTable? A JTable is a subclass of JComponent class for displaying complex data structures. A JTable component can follow the Model View Controller (MVC) design pattern for displaying the data in rows and columns. Syntax The following is the syntax: JTable table = new JTable(data, columnNames); A JTable can generate different ... Read More
Both strncmp() and strcmp() are used in C/C++ programs for lexicographical string comparison. The strcmp() compares two strings till the null character is found, whereas strncmp() only compares a specified number of characters. What is strncmp() ? The function strncmp() is used to compare left string to right string up to a number. It works same as strcmp(). It returns a value greater than zero when the matching character of left string has greater ASCII value than the character of the right string. Returns a value less than zero when the matching character of left string has lesser ASCII value ... Read More
In C, we have various methods to clear the console or output screen and one of them is clrscr() function. It clears the screen as function invokes. It is declared in "conio.h" header file. There are some other methods too like system (cls) and system ("clear") and these are declared in "stdlib.h" header file. Syntax Following are the list of syntaxes to clear the console in C programming language as follows: clrscr(); Or, system("cls"); Or, system("clear"); Let’s say we have "new.txt" file with the following content: 0, hell!o 1, hello! 2, gfdtrhtrhrt 3, ... Read More
In C++, swapping two variables means exchanging the values stored in them. There can be multiple ways to implement the swapping using single line statement. In this article, we are going to learn some of the approaches to swap the values. Example Let's consider the following example with input and output scenario: Input: int a = 5; int b = 6; Output: a = 6 b = 5 You can implement swapping of two variable by using the following different ways: Using Arithmetic Operator Using Tuple Using XOR Swap Two Variables Using Arithmetic Operator In ... Read More
In C/C++, the main() function is used in the beginning of every program. This returns the program execution status in the operating system. Syntax Following is the syntax of the main() function using C/C++: int main(void); int main(int argc, char *argv[]); Example Below, the C/C++ example shows the usage of the main() return value. C C++ #include int main() { printf("Hello, C World!"); return 0; } Key Points of C Return 0: This is standard for successful execution Non-zero: It indicates error Implicit return: C99 allows omitting return #include int main() { std::cout
What is Unidecode? Unidecode is a Python module that helps convert unidecode text into plain ASCII characters. This is mostly used when the text contains special characters or non-English characters, and you need to simplify it. For example, it converts "kožušček" to "kozuscek", "北京" to "Bei Jing", and "naïve" to "naive". This module is popularly used to simplify for processing or display of user-generated content and international data [multi-lingual]. Installing Python Unidecode Module To install unidecode or any other Python module, you need pip installed(Python package manager). If you have Python 2 >=2.7.9 or Python 3 ... Read More
What is Python Module? A file containing Python commands and definitions is referred to as a Python module. These files have .py suffix that contains Python code, such as example.py, and the name of the module is an example. Modules are used to divide down huge applications into smaller, more manageable files. As Python projects grow, organizing code becomes essential. One of the most effective way to manage complexity and avoid code re-usage is creating your own Python module. Some of the benefits of creating modules include − Organized Code Re-usability ... Read More
What is a Python Module? A module in Python is a simple .py file that contains code, which includes functions, classes, and variables. The module can be reused in other programs. Also, Python comes with built-in modules, which include os and math. Usually, modules are imported statically at the top of the code, but there can also be cases that require dynamic importing. Some of the reasons might be − You are not sure which module to import until the program runs. You are building plugin systems(a software program that allows ... Read More
What is Root Access? Root access refers to the highest level of administrative privileges on Unix-like operating systems [Linus or macOS]. This root user has the ability to access all the files and system settings. This includes installing and removing software, altering system configurations, and managing user accounts. Installing Python Modules without Root Access In Python modules are files with the “. py” extension containing Python code that can be imported inside another Python Modules Operations Program. If you don't have sufficient permissions to install Python modules directly on your machines, there are a few alternative methods you can use. ... Read More
Separate tuple and list data types are provided because both have different roles. Tuples are immutable, whereas lists are mutable. That means Lists can be modified, whereas Tuple cannot. Tuples are sequences, just like lists. The differences between tuples and lists are, the tuples cannot be changed unlike lists and tuples use parentheses, whereas lists use square brackets. Let’s see how Lists and Tuples are created. Creating a Basic Tuple We will begin the code by creating a basic tuple with integer elements. Next, specify the topics as advanced concepts like tuples nested within tuples. The provided code initializes a ... Read More