Java Classes, Inheritance, DOM, JSP and Animation Practicals

Practical 1: Program on Class and Object in Java

Practical 1: Program on Class and Object in Java

class Student {
String name;
int rollNo;

Student(String name, int rollNo) {
this.name = name;
this.rollNo = rollNo;
}

static void displayInfo(Student student) {
System.out.println(“Student Name: ” + student.name);
System.out.println(“Roll Number: ” + student.rollNo);
}
}

class Main {
public static void main(String[] args) {

Student student1 = new Student(

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Java OOP, File Handling & JSP Practicals Guide Code Examples


<%
String name = request.getParameter(“userName”);
String bdate = request.getParameter(“birthDate”);
String email = request.getParameter(“emailAddr”);
int lucky = Integer.parseInt(request.getParameter(“luckyNo”));
%>

User Information Summary



Name: <%= name %>
BirthDate: <%= bdate %>
EMail: <%= email %>
Lucky Number: <%= lucky %>

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Java and JavaScript Lab Experiments: Classes, Inheritance, JSP and DOM

Experiment 1: Classes, Objects, Looping, and Branching in Java

Aim: To write a Java program demonstrating classes, objects, looping, and branching statements.

Code:

class Calculator {
int add(int a, int b) {
return a + b;
}
}
public class Exp1 {
public static void main(String[] args) {
Calculator calc = new Calculator();
// Branching (if-else)
int num = 10;
if (num > 0) {
System.out.println(num + ” is positive.”);
} else {
System.

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File Allocation Techniques in Operating System: Contiguous, Linked and Indexed

Explain Different File Allocation Techniques

(7 Marks Answer – Operating System)

Sabse pehle Hindi mein samjho 😊

File Allocation Techniques ka matlab hai hard disk mein files ko store karne ke liye disk blocks ko allocate karne ka tarika.

Operating System mein 3 main File Allocation Techniques hoti hain:

  1. Contiguous Allocation
  2. Linked Allocation
  3. Indexed Allocation

1. Contiguous Allocation

Definition: In this technique, ek file ke sabhi blocks disk mein continuously (ek ke baad ek) store hote hain.

Example:

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Python Basics: Operators, Logic, Loops, Strings, Functions, Lists, Dictionaries and File I/O

Python Basics, Operators, Logic and Loops

Syntax and Reading Code

Variables such as x, y, value, word, text, n, i, total, and result are ordinary variable names, not Python commands. x=5 assigns or reassigns a value, while == compares equality. Python runs statements from top to bottom, expressions follow operator precedence, and chained methods run from left to right: s.lower().title().

  • # starts a comment that is ignored.
  • Indentation groups blocks of code.
  • : begins an if, for, while, or def block.
  • ()
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Introduction to Java Programming: Basics, Comments, Loops and More

Introduction to Java Programming

Basics

– Every program has a file name, and that file name must match the name of the class.

– In order for a program to execute successfully, you need to have the following lines of code after the class header:

public class Review {     ← class header

public static void main(String[] args) {   ← main method header

//insert code here  ← your code goes inside the body of the main method

}

}

Input-Process-Output

Every program will have inputs (variable declaration

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