Skip to main content

Socket (TCP & UDP) communication in Java

Socket communication in Java enables communication between two endpoints over a network. There are two main types of sockets: TCP sockets and UDP sockets. Let's explain both types with examples: TCP Socket Communication: 1. **Server Side**:    - The server creates a `ServerSocket` object to listen for incoming connections on a specific port.    - When a client connects, the server accepts the connection and creates a `Socket` object to communicate with the client.    - The server reads from and writes to the socket's input and output streams to communicate with the client. import java.io.*; import java.net.*; public class TCPServer {     public static void main(String[] args) throws IOException {         ServerSocket serverSocket = new ServerSocket(12345);         System.out.println("Server started. Waiting for client...");         Socket clientSocket = serverSocket.accept();   ...
Post a Comment

Basic Java program for implementation operators, variables, control flow statements

 public class BasicJavaProgram {


    public static void main(String[] args) {

        // Variables

        int num1 = 10;

        int num2 = 5;


        // Arithmetic Operators

        int sum = num1 + num2;

        int difference = num1 - num2;

        int product = num1 * num2;

        int quotient = num1 / num2;

        int remainder = num1 % num2;


        // Comparison Operators

        boolean isEqual = num1 == num2;

        boolean isNotEqual = num1 != num2;

        boolean isGreater = num1 > num2;

        boolean isLess = num1 < num2;

        boolean isGreaterOrEqual = num1 >= num2;

        boolean isLessOrEqual = num1 <= num2;


        // Logical Operators

        boolean logicalAnd = (num1 > 0) && (num2 < 10);

        boolean logicalOr = (num1 > 0) || (num2 < 10);

        boolean logicalNot = !(num1 == num2);


        // Conditional Statements

        if (num1 > num2) {

            System.out.println("num1 is greater than num2");

        } else if (num1 < num2) {

            System.out.println("num1 is less than num2");

        } else {

            System.out.println("num1 is equal to num2");

        }


        // Looping Statements

        System.out.println("Printing numbers from 1 to 5:");

        for (int i = 1; i <= 5; i++) {

            System.out.print(i + " ");

        }

        System.out.println(); // Move to the next line


        // Switch Statement

        int dayOfWeek = 3;

        String dayName;

        switch (dayOfWeek) {

            case 1:

                dayName = "Sunday";

                break;

            case 2:

                dayName = "Monday";

                break;

            case 3:

                dayName = "Tuesday";

                break;

            case 4:

                dayName = "Wednesday";

                break;

            case 5:

                dayName = "Thursday";

                break;

            case 6:

                dayName = "Friday";

                break;

            case 7:

                dayName = "Saturday";

                break;

            default:

                dayName = "Invalid day";

        }

        System.out.println("Day of the week: " + dayName);

    }

}

____________________

This program showcases the usage of variables (num1, num2), arithmetic operators (+, -, *, /, %), comparison operators (==, !=, >, <, >=, <=), logical operators (&&, ||, !), conditional statements (if, else if, else), looping statements (for loop), and the switch statement. It demonstrates basic operations and control flow in Java.

Labels:

Comments

Post a Comment

Popular posts from this blog

Method Overloading in Java

Method Overloading in Java Method Overloading  is a feature in Java that allows a class to have multiple methods with the same name but different parameter lists. The methods can have a different number or types of parameters. The decision on which method to invoke is made by the compiler based on the arguments provided during the method call.  Example: public class Calculator {     // Method to add two integers     public int add(int a, int b) {         return a + b;     }     // Method to add three integers     public int add(int a, int b, int c) {         return a + b + c;     }     // Method to add two doubles     public double add(double a, double b) {         return a + b;     }     // Method to concatenate two strings     public String concatenate(String str1, String str2) {         ...
Post a Comment
Read more

Java Runtime Environment (JRE)

Definition : Java Runtime Environment (JRE) is a set of software tools and libraries that enables the execution of Java applications. It provides the necessary runtime support for Java programs to run on various devices and platforms. Components of Java Runtime Environment (JRE): Java Virtual Machine (JVM): Definition: The JVM is a crucial component of the JRE responsible for executing Java bytecode. Functionality: It interprets Java bytecode or, in some cases, uses Just-In-Time (JIT) compilation to translate bytecode into native machine code for improved performance. Importance: JVM abstracts the underlying hardware, allowing Java programs to be platform-independent. Class Libraries: Definition: JRE includes a set of precompiled classes and methods that Java applications can utilize. Functionality: These classes cover a wide range of functionalities, from basic data structures to networking. Importance: Class libraries provide a foundation for developers, offering reusable code ...
Post a Comment
Read more