cpojha/mlsa_java

Day 1 Assignment - MLSA Java Workshop

This repository contains the solution to 5 basic programming assignments covered in Day 1 of the Microsoft Learn Student Ambassador (MLSA) workshop. The codes are written in Java and cover foundational concepts like area calculation, multiplication tables, factorials, grade checking, and leap year determination.

Table of Contents

1. Assignment 1 - Area of a Rectangle
2. Assignment 2 - Multiplication Table
3. Assignment 3 - Factorial of a Number
4. Assignment 4 - Grade Checker
5. Assignment 5 - Leap Year Checker

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Assignment 1 - Area of a Rectangle

This program calculates the area of a rectangle based on user input for length and width.

• Concepts Used: Input handling, basic arithmetic operations.
• Input: Length and width of the rectangle.
• Output: The calculated area of the rectangle.

Code:

import java.util.Scanner;

public class AreaOfRectangle {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Input: Length and width
        System.out.print("Enter the length of the rectangle: ");
        double length = scanner.nextDouble();
        
        System.out.print("Enter the width of the rectangle: ");
        double width = scanner.nextDouble();
        
        // Calculate the area
        double area = length * width;
        
        // Output the result
        System.out.println("The area of the rectangle is: " + area);
    }
}

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Assignment 2 - Multiplication Table

This program prints the multiplication table for a number up to 10.

• Concepts Used: Loops, arithmetic operations.
• Input: An integer number.
• Output: The multiplication table for that number up to 10.

Code:

import java.util.Scanner;

public class MultiplicationTable {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Input: An integer number
        System.out.print("Enter a number: ");
        int num = scanner.nextInt();
        
        // Generate multiplication table up to 10
        for (int i = 1; i <= 10; i++) {
            System.out.println(num + " x " + i + " = " + num * i);
        }
    }
}

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Assignment 3 - Factorial of a Number

This program calculates the factorial of a number using a for loop.

• Concepts Used: Loops, arithmetic operations.
• Input: An integer number.
• Output: The factorial of the given number.

Code:

import java.util.Scanner;

public class FactorialOfNumber {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Input: A number
        System.out.print("Enter a number: ");
        int num = scanner.nextInt();
        
        int factorial = 1;
        
        // Calculate factorial using a for loop
        for (int i = 1; i <= num; i++) {
            factorial *= i;
        }
        
        // Output the result
        System.out.println("The factorial of " + num + " is: " + factorial);
    }
}

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Assignment 4 - Grade Checker

This program checks and prints the grade based on a score between 0 and 100.

• Concepts Used: Conditional statements.
• Input: A score (0-100).
• Output: The corresponding grade (A-F).

Code:

import java.util.Scanner;

public class GradeChecker {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Input: Score (0-100)
        System.out.print("Enter the score (0-100): ");
        int score = scanner.nextInt();
        char grade;
        
        // Check grade based on the score
        if (score >= 90) {
            grade = 'A';
        } else if (score >= 80) {
            grade = 'B';
        } else if (score >= 70) {
            grade = 'C';
        } else if (score >= 60) {
            grade = 'D';
        } else {
            grade = 'F';
        }
        
        // Output the grade
        System.out.println("The grade is: " + grade);
    }
}

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Assignment 5 - Leap Year Checker

This program checks whether a given year is a leap year or not.

• Concepts Used: Conditional statements, modulo arithmetic.
• Input: A year.
• Output: Whether the year is a leap year or not.

Code:

import java.util.Scanner;

public class LeapYearChecker {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Input: A year
        System.out.print("Enter a year: ");
        int year = scanner.nextInt();
        
        // Check if it's a leap year
        boolean isLeapYear;
        if (year % 4 == 0) {
            if (year % 100 == 0) {
                isLeapYear = year % 400 == 0;
            } else {
                isLeapYear = true;
            }
        } else {
            isLeapYear = false;
        }
        
        // Output the result
        if (isLeapYear) {
            System.out.println(year + " is a leap year.");
        } else {
            System.out.println(year + " is not a leap year.");
        }
    }
}

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How to Run the Programs

1. Clone this repository to your local machine:

   git clone https://github.com/your-username/day1-mlsa-assignments.git

2. Navigate to the project directory:

   cd day1-mlsa-assignments

3. Compile and run any of the Java programs using a terminal:

   javac ProgramName.java
   java ProgramName

   Replace ProgramName with the name of the file (e.g., AreaOfRectangle, MultiplicationTable, etc.).

Conclusion

These assignments aim to strengthen your foundational programming concepts using Java. Each program is designed to introduce and reinforce key topics such as conditional logic, loops, and input handling.

Feel free to modify, experiment, and expand upon the provided code. Happy coding!

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Author:

• Chandra Prakash Ojha - MLSA Workshop Participant