Java Command-Line Programs

This repository contains a collection of four simple Java programs designed to demonstrate basic concepts, including user input, random number generation, arithmetic operations, and looping constructs.

📁 Programs Overview

Program File	Description	Concepts Demonstrated
RussianPawnMultiplication.java	Implements the Russian Peasant Multiplication algorithm to find the product of two integers without using the standard multiplication operator.	while loop, Conditional logic (if), Integer arithmetic.
ShoppingCart.java	A simple program that calculates the total cost of an item based on user-provided price and quantity.	User input (Scanner), Basic arithmetic.
RandomGuess.java	A number guessing game where the user tries to guess a random number within a range in a limited number of attempts.	Random number generation (Random), do-while loop, Conditional logic (if/else if), Attempt counter.
Main.java	A classic "Mad Libs" style game where the user provides different parts of speech to complete a short story.	User input (Scanner), String concatenation.

🚀 Getting Started

Prerequisites

You need to have the Java Development Kit (JDK) installed on your system to compile and run these programs.

Compilation and Execution (from Terminal)

1. Save the files: Save each code block into its respective .java file (e.g., ShoppingCart.java).
2. Navigate to the directory: Open your terminal and change the directory to where you saved the files.
3. Compile: Compile the desired Java file using javac.

   javac ProgramName.java
   # Example:
   javac ShoppingCart.java

4. Run: Execute the compiled class file using java.

   java ProgramName
   # Example:
   java ShoppingCart

📜 Example Usage

RandomGuess.java

This program generates a random number between 1 and 100 and prompts the user to guess it.