Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
Articles by Anvi Jain
427 articles
Concept of Direct Memory Access (DMA)
The microcomputer system basically consists of three blocksThe microprocessorThe memories of microprocessor like EPROM and RAMThe I/O ports by which they are connected.The possible data transfers are indicated below.Between the memory and microprocessor data transfer occurs by using the LDA and STA instructions.Between microprocessor and I/O ports also data transfer occurs by the help of two instructions IN and OUT.Through DMA data transfer, data is transferred between the Input Output ports and the memory.Fig: The figure shows possible ways of data transfers in a microcomputer system.For performing the data transfer either between the microprocessor and memory or between I/O ports ...
Read MoreJava program to get text from JTextPane and display in Console
In this article, we will learn how to get text from a JTextPane in Java and display it in the console. We'll use the getText() method to retrieve the text and show it in the console. Additionally, we’ll apply simple text styling like italics and color using SimpleAttributeSet to demonstrate how to manage styled text in a GUI. Steps to get text from JTextPane Following are the steps to get text from JTextPane and display it in the Console using Java − First, we will start by creating a JFrame to serve as the main window of ...
Read MoreJava program to set an icon for JOptionPane
In this program, we will learn how to set a custom icon in a JOptionPane using Java's Swing framework. A JOptionPane allows displaying dialog boxes for different purposes such as messages, inputs, or confirmations. In this example, we will create a dialog box with a custom image icon displayed alongside some text. This can be particularly useful for creating visually appealing user interfaces. Problem Statement Write a Java program to set an icon for JOptionPane. Below is the demonstration of the same − Output Steps to set an icon for JOptionPane Following are the steps to set an ...
Read MoreHidden Bootstrap class
To hide a Bootstrap class, use the .hidden class.Example You can try to run the following code to hide a class − Bootstrap Example This class is visible. This is an example for hide class. This will be hidden.
Read More8085 program to multiply two 8 bit numbers
In this program we will see how to multiply two 8-bit numbers using 8085 microprocessor.Problem StatementWrite 8085 Assembly language program to multiply two 8-bit numbers stored in memory location and store the 16-bit results into the memory.DiscussionThe 8085 has no multiplication operation. To get the result of multiplication, we should use the repetitive addition method.After multiplying two 8-bit numbers it may generate 1-byte or 2-byte numbers, so we are using two registers to hold the result.We are saving the data at location 8000H and 8001H. The result is storing at location 8050H and 8051H.InputAddressData......8000DC8001AC......Flow DiagramProgramAddressHEX CodesLabelsMnemonicsCommentsF00021, 00, 80LXI H, 8000HLoad ...
Read MoreGenerate a random array of integers in Java
In order to generate random array of integers in Java, we use the nextInt() method of the java.util.Random class. This returns the next random integer value from this random number generator sequence.Declaration − The java.util.Random.nextInt() method is declared as follows −public int nextInt()Let us see a program to generate a random array of integers in Java −Example Live Demoimport java.util.Random; public class Example { public static void main(String[] args) { Random rd = new Random(); // creating Random object int[] arr = new int[5]; for (int i = 0; i
Read MoreHow to search in array of object in MongoDB?
To search the array of object in MongoDB, you can use $elemMatch operator. This operator allows us to search for more than one component from an array object.To understand the above concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.searchArrayDemo.insertOne({"EmployeeFirstName":"Adam", "EmployeeLastName":"Smith", "EmployeeDateOfBirth":new ISODate("1992-01-31 13:45:10"), ... "EmployeeSkills":["Spring and Hibernate Framework", "Machine Learning"], ... "EmployeeDetails":[ ... { ... "EmployeePerformanceArea":"Java", ... "Year":2001 ... }, ... { ... ...
Read MoreHow to get the datatype of MySQL table columns?
You can get the MySQL table columns data type with the help of "information_schema.columns".The syntax is as follows −SELECT DATA_TYPE from INFORMATION_SCHEMA.COLUMNS where table_schema = 'yourDatabaseName' and table_name = 'yourTableName'To understand the above syntax, let us first create a table −mysql> create table DataTypeDemo −> ( −> Id int, −> Address varchar(200), −> Money decimal(10, 4) −> ); Query OK, 0 rows affected (0.60 sec)Apply the above syntax to get the MySQL columns data type. The query is as follows −mysql> select data_type from information_schema.columns where table_schema = 'business' and able_name = 'DataTypeDemo';The following is the output ...
Read MoreHow to draw sine waves with HTML5 SVG?
To draw sine waves with SVG, use the following that closely approximates half of a sine wave. I have used a cubic-bezier approximation. Use the element.Example SVG HTML5 SVG Sine Waves Output
Read MoreC++ Program to Implement the RSA Algorithm
RSA is an asymmetric cryptography algorithm which works on two keys-public key and private key.AlgorithmsBegin 1. Choose two prime numbers p and q. 2. Compute n = p*q. 3. Calculate phi = (p-1) * (q-1). 4. Choose an integer e such that 1 < e < phi(n) and gcd(e, phi(n)) = 1; i.e., e and phi(n) are coprime. 5. Calculate d as d ≡ e−1 (mod phi(n)); here, d is the modular multiplicative inverse of e modulo phi(n). 6. For encryption, c = me mod n, where m = original message. 7. For ...
Read More