-

 What is mean by java ?


Java is a high-level, object-oriented programming language originally developed by Sun Microsystems (now owned by Oracle Corporation). It's known for its platform independence, which means Java programs can run on various operating systems without modification, thanks to the Java Virtual Machine (JVM). Java is widely used in web development, mobile app development (Android apps are primarily written in Java), and in many other software applications, making it a versatile and popular programming language.


Java has several advantages, including:


1. Platform Independence: Java applications can run on any platform with a Java Virtual Machine (JVM), making them platform-independent.


2. Object-Oriented: Java is an object-oriented programming language, which promotes modular and maintainable code.


3. Strong Standard Library: Java offers a robust standard library that simplifies common tasks like I/O, networking, and data manipulation.


4. Portability: Java bytecode can be executed on various devices and operating systems without modification.


5. Security: Java has built-in security features like bytecode verification and a security manager to protect against malicious code.


6. Multithreading: Java supports multithreading, allowing for efficient utilization of hardware resources.


7. Large Developer Community: Java has a vast developer community, which means plenty of resources, libraries, and frameworks are available.


8. Rich Ecosystem: There are numerous tools, IDEs (Integrated Development Environments), and frameworks available for Java development.


9. Performance: Java's performance has improved over the years, thanks to optimizations and Just-In-Time (JIT) compilation.


10. Enterprise-Friendly: Many businesses use Java for its reliability and scalability, making it suitable for large-scale enterprise applications.


These advantages have contributed to Java's continued popularity in various domains, from web development to mobile app development and more.



Certainly, here are some more disadvantages of Java:


1. **Memory Consumption:** Java applications can be memory-intensive. This can be a problem for applications running on devices with limited memory or in environments where memory efficiency is crucial.


2. **Slower Startup:** Java applications tend to have a slower startup time compared to natively compiled languages. This can be an issue for applications that need to start quickly or have low latency requirements.


3. **Lack of Low-Level Control:** Java abstracts away many low-level details, which can be a disadvantage if you need fine-grained control over hardware or system-level operations.


4. **Legacy Code and Compatibility:** As Java evolves, older versions of Java may become deprecated. This can lead to compatibility issues if you have legacy code that relies on deprecated features or libraries.


5. **Limited Support for Functional Programming:** While Java has introduced functional programming features in recent versions (e.g., lambdas and streams), it's not as well-suited for functional programming as some other languages designed with functional programming in mind.


6. **GUI Development:** Developing graphical user interfaces (GUIs) in Java can be more complex and less intuitive compared to some other languages and frameworks.


7. **Lack of Operator Overloading:** Java doesn't support operator overloading, which can make certain mathematical or custom data types less convenient to work with.


It's important to note that these disadvantages may not be significant for all use cases, and Java continues to be a widely used and versatile programming language with many strengths. The choice of programming language depends on the specific requirements and constraints of a project.

Comments

Post a Comment

Popular posts from this blog

WT slip tybcs21to30

-
 @Slip-21 Q. 1)Add a JavaScript File in Codeigniter. The Javascript code should check whether a number is  Positive or negative.  Ans: Html file <!DOCTYPE html> <html>    <head>       <title>Number Check</title>       <script src=”<?php echo base_url(‘js/numberCheck.js’); ?>”></script>    </head>    <body>       <h1>Number Check</h1>       <p>Enter a number to check:</p>       <input type=”number” id=”num” />       <button onclick=”checkNumber(document.getElementById(‘num’).value)”>Check</button>    </body> </html> Create is file check number.js Function checkNumber(num) {    If (num > 0) {       Alert(“The number is positive.”);    } else if (num < 0) {       Alert(“The number...
Read more

Wt slip tybcs11to 20

-
 @Slip-11 Q. 1) Write a Javascript program to accept name of student, change font color to red, font size to 18 if  Student name is present otherwise on clicking on empty text box display image which changes its size  (Use onblur, onload, onmousehover, onmouseclick, onmouseup)  Ans: <!DOCTYPE html> <html> <head> <title>JavaScript Example</title> <style> #name { Font-size: 14px; Color: black; } </style> </head> <body> <input type=”text” id=”name” onblur=”changeStyle()” onmouseover=”changeSize()” onmouseout=”resetSize()” onmousedown=”changeColor()” onmouseup=”resetColor()”> <img id=”img” src=https://via.placeholder.com/150 onload=”changeImageSize()”> <script> Function changeStyle() { Let name = document.getElementById(“name”).value; If (name) { Document.getElementById(“name”).style.fontSize = “18px”; Document.getElementById(“name”).style.color = “red...
Read more

Java

-
@@1@@  public class demo extends Thread { char c; public void run() { for(c = 'A'; c<='Z';c++) { System.out.println(""+c); try { Thread.sleep(3000); } catch(Exception e) { e.printStackTrace(); } } } public static void main(String args[]) { demo t = new demo(); t.start(); } } Write a Java program to accept the details of Employee (Eno, EName, Designation,Salary) from a user and store it into the database. (Use Swing) @@@2 Write a java program to read ‘N’ names of your friends, store it into HashSet and display them in ascending order.  //Java program to count words in a string.   import java.util.Scanner;  class SortStrings {     public static void main(String args[])     {         String temp;         Scanner SC = new Scanner(System.in);          System.out.print("Enter the value of N: ");         int N= SC.nextInt();         SC.nextLine(); ...
Read more