Coding in JAVA

 📘 Java Program to Input and Display User Details in Table Format  In this program, we will take input like name, age, address, mobile number, and email ID and display it in a proper table format. 🧠 Concepts Used Scanner class for input Variables and data types Formatted output using \t (tab space) 🪜 Algorithm Start the program Import the Scanner class Create Scanner object Input the following details: Name Age Address Mobile Number Email ID Store values in variables Print table heading Print column names (Name, Age, Address, Mobile, Email) Display all values in one row using tab space Stop the program 💻 Java Program import java.util.Scanner; public class UserDetails{     public static void main(String args[ ]) {         Scanner sc = new Scanner(System.in);         // Input Section         System.out.print("Enter Name: ");         String name = sc.nextLine();       ...

  ⬤ Initialization in Java Initialization in Java means assigning values to variables . It is one of the most important concepts for ICSE students because it controls how data is used in a program. In Java, data can be given to a program in three different stages : Data before execution (Initialization) Data at the time of execution (Parameters) Data during execution (Input using Scanner) 1. Data Before Execution (Initialization) This is the simplest type of initialization. 👉 Here, values are assigned to variables before the program starts running . Example: class Example { public static void main ( String args []) { int a = 10 ; // Initialization int b = 20 ; int sum = a + b ; System . out . println ( "Sum = " + sum ); } } Explanation: a = 10 and b = 20 are initialized before execution The program will always give the same output ✅ Best for: Fixed values ❌ Not flexible 2. Parameter at ...

 Expressions, Statements and Displaying Data in Java  (ICSE Computer Applications Notes) Expression:  Java is one of the most powerful and widely used programming languages. While writing programs in Java, we frequently use  expressions  to perform calculations and operations. An  expression in Java  is a combination of  variables ,  constants ,  operators , and method calls  that produces a  single value  when evaluated. In simple words, an expression is a  statement that calculates a value . Components of a Java Expression: 1. Variables Variables store values used in expressions. Example: int a = 5; int b = 10; int c = a + b; Here  a + b  is an expression. 2. Constants Constants are fixed values used in expressions. Example int result = 5 * 6; Here 5 * 6 is an expression. 3. Operators Operators perform operations on variables and constants. Example: ...