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ChevuruSumanthChevuruSumanth
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‎Chevurusumanth/NumberGuessing.java

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import java.util.*;
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import java.util.Random;
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public class NumberGuessing {
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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Random random = new Random();
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System.out.println("Welcome to the Number Guessing Game!");
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System.out.println("I have selected a number between 1 and 100. Try to guess it!");
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int maxAttempts = 10;
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int secretNumber = random.nextInt(100) + 1;
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int attempts = 0;
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boolean guessedCorrectly = false;
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while (attempts < maxAttempts) {
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System.out.print("Enter your guess (between 1 and 100): ");
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int guess = scanner.nextInt();
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attempts++;
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if (guess == secretNumber) {
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guessedCorrectly = true;
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break;
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} else if (guess < secretNumber) {
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System.out.println("Too low! Try again.");
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} else {
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System.out.println("Too high! Try again.");
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}
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}
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if (guessedCorrectly) {
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System.out.println("Congratulations! You've guessed the number " + secretNumber + " correctly in " + attempts + " attempts!");
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} else {
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System.out.println("Sorry, you've exceeded the maximum number of attempts. The correct number was: " + secretNumber);
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}
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scanner.close();
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}
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}

‎Chevurusumanth/Temp.java

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import java.util.Scanner;
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public class Temp {
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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System.out.println("Welcome to Temperature Converter!");
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System.out.println("Enter the temperature scale you want to convert from:");
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System.out.println("1. Celsius");
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System.out.println("2. Fahrenheit");
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System.out.println("3. Kelvin");
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System.out.print("Enter your choice (1/2/3): ");
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int choiceFrom = scanner.nextInt();
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System.out.print("Enter the temperature value: ");
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double temperature = scanner.nextDouble();
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double convertedTemperature = 0;
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switch (choiceFrom) {
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case 1:
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System.out.println("Convert Celsius to:");
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System.out.println("1. Fahrenheit");
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System.out.println("2. Kelvin");
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System.out.print("Enter your choice (1/2): ");
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int choiceToCelsius = scanner.nextInt();
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if (choiceToCelsius == 1) {
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convertedTemperature = celsiusToFahrenheit(temperature);
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System.out.println(temperature + " Celsius = " + convertedTemperature + " Fahrenheit");
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} else if (choiceToCelsius == 2) {
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convertedTemperature = celsiusToKelvin(temperature);
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System.out.println(temperature + " Celsius = " + convertedTemperature + " Kelvin");
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} else {
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System.out.println("Invalid choice!");
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}
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break;
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case 2:
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System.out.println("Convert Fahrenheit to:");
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System.out.println("1. Celsius");
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System.out.println("2. Kelvin");
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System.out.print("Enter your choice (1/2): ");
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int choiceToFahrenheit = scanner.nextInt();
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if (choiceToFahrenheit == 1) {
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convertedTemperature = fahrenheitToCelsius(temperature);
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System.out.println(temperature + " Fahrenheit = " + convertedTemperature + " Celsius");
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} else if (choiceToFahrenheit == 2) {
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convertedTemperature = fahrenheitToKelvin(temperature);
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System.out.println(temperature + " Fahrenheit = " + convertedTemperature + " Kelvin");
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} else {
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System.out.println("Invalid choice!");
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}
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break;
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case 3:
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System.out.println("Convert Kelvin to:");
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System.out.println("1. Celsius");
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System.out.println("2. Fahrenheit");
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System.out.print("Enter your choice (1/2): ");
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int choiceToKelvin = scanner.nextInt();
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if (choiceToKelvin == 1) {
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convertedTemperature = kelvinToCelsius(temperature);
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System.out.println(temperature + " Kelvin = " + convertedTemperature + " Celsius");
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} else if (choiceToKelvin == 2) {
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convertedTemperature = kelvinToFahrenheit(temperature);
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System.out.println(temperature + " Kelvin = " + convertedTemperature + " Fahrenheit");
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} else {
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System.out.println("Invalid choice!");
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}
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break;
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default:
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System.out.println("Invalid choice!");
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}
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scanner.close();
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}
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public static double celsiusToFahrenheit(double celsius) {
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return (celsius * 9 / 5) + 32;
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}
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public static double celsiusToKelvin(double celsius) {
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return celsius + 273.15;
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}
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public static double fahrenheitToCelsius(double fahrenheit) {
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return (fahrenheit - 32) * 5 / 9;
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}
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public static double fahrenheitToKelvin(double fahrenheit) {
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return (fahrenheit + 459.67) * 5 / 9;
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}
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public static double kelvinToCelsius(double kelvin) {
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return kelvin - 273.15;
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}
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public static double kelvinToFahrenheit(double kelvin) {
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return (kelvin * 9 / 5) - 459.67;
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}
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}

‎Chevurusumanth/ToDoList.java

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import java.util.ArrayList;
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import java.util.Scanner;
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class Task {
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private String name;
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private boolean completed;
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public Task(String name) {
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this.name = name;
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this.completed = false;
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}
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public String getName() {
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return name;
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}
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public boolean isCompleted() {
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return completed;
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}
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public void markCompleted() {
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this.completed = true;
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}
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}
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public class TaskManager {
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private ArrayList<Task> tasks;
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private Scanner scanner;
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public TaskManager() {
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tasks = new ArrayList<>();
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scanner = new Scanner(System.in);
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}
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public void displayMenu() {
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System.out.println("Task Manager Menu:");
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System.out.println("1. Add Task");
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System.out.println("2. Delete Task");
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System.out.println("3. Mark Task as Completed");
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System.out.println("4. View Tasks");
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System.out.println("5. Exit");
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System.out.print("Enter your choice: ");
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}
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public void addTask(String taskName) {
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Task task = new Task(taskName);
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tasks.add(task);
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System.out.println("Task added successfully!");
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}
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public void deleteTask(int index) {
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if (index >= 0 && index < tasks.size()) {
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tasks.remove(index);
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System.out.println("Task deleted successfully!");
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} else {
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System.out.println("Invalid task index!");
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}
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}
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public void markTaskCompleted(int index) {
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if (index >= 0 && index < tasks.size()) {
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tasks.get(index).markCompleted();
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System.out.println("Task marked as completed!");
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} else {
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System.out.println("Invalid task index!");
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}
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}
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public void viewTasks() {
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System.out.println("Tasks:");
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for (int i = 0; i < tasks.size(); i++) {
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Task task = tasks.get(i);
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System.out.println((i + 1) + ". " + task.getName() + " - Completed: " + task.isCompleted());
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}
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}
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public static void main(String[] args) {
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TaskManager taskManager = new TaskManager();
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Scanner scanner = new Scanner(System.in);
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int choice;
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do {
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taskManager.displayMenu();
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choice = scanner.nextInt();
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scanner.nextLine(); // Consume newline
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switch (choice) {
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case 1:
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System.out.print("Enter task name: ");
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String taskName = scanner.nextLine();
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taskManager.addTask(taskName);
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break;
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case 2:
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System.out.print("Enter index of task to delete: ");
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int deleteIndex = scanner.nextInt();
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taskManager.deleteTask(deleteIndex - 1);
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break;
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case 3:
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System.out.print("Enter index of task to mark as completed: ");
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int completeIndex = scanner.nextInt();
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taskManager.markTaskCompleted(completeIndex - 1);
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break;
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case 4:
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taskManager.viewTasks();
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break;
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case 5:
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System.out.println("Exiting...");
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break;
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default:
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System.out.println("Invalid choice. Please enter a number between 1 and 5.");
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}
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} while (choice != 5);
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scanner.close();
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}
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}

‎Chevurusumanth/cal.java

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import java.util.Scanner;
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public class Cal {
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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System.out.println("Welcome to Basic Calculator!");
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System.out.println("Enter the operation you want to perform:");
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System.out.println("1. Addition (+)");
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System.out.println("2. Subtraction (-)");
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System.out.println("3. Multiplication (*)");
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System.out.println("4. Division (/)");
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System.out.print("Enter your choice (1/2/3/4): ");
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int choice = scanner.nextInt();
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System.out.print("Enter the first number: ");
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double num1 = scanner.nextDouble();
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System.out.print("Enter the second number: ");
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double num2 = scanner.nextDouble();
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double result = 0;
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switch (choice) {
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case 1:
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result = num1 + num2;
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System.out.println("Result: " + num1 + " + " + num2 + " = " + result);
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break;
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case 2:
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result = num1 - num2;
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System.out.println("Result: " + num1 + " - " + num2 + " = " + result);
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break;
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case 3:
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result = num1 * num2;
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System.out.println("Result: " + num1 + " * " + num2 + " = " + result);
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break;
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case 4:
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if (num2 != 0) {
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result = num1 / num2;
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System.out.println("Result: " + num1 + " / " + num2 + " = " + result);
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} else {
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System.out.println("Error: Division by zero!");
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}
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break;
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default:
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System.out.println("Invalid choice!");
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}
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scanner.close();
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}
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}

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