This project demonstrates the unique behavior of the Do-While Loop in Java. Unlike a standard while loop, the do-while structure ensures that the code block is executed at least once because the exit condition is checked only after the iteration is complete.
The project simulates a game startup sequence where data loading is initiated regardless of the version check status.
Task 52: Implement a post-condition loop that executes once even if the exit condition is immediately met.
Requirements:
- Variable
int gameVersioninitialized to 10. - Use
do-whileloop for "Loading data..." message. - Include informative console output:
"gameVersion: " + gameVersion. - Add a post-loop message explaining why the execution stopped.
- Ensure the loop condition (
gameVersion != 10) terminates the loop after the first run.
- Guaranteed Execution: Using the
doblock to force initial logic processing. - Post-Iteration Validation: Evaluating loop continuity after state output.
- User Feedback: Utilizing string concatenation for descriptive console logs.
- Logic Flow: The program enters the
doblock immediately. It prints the loading status and the currentgameVersion(10). Then, it evaluates10 != 10. Since this isfalse, the loop exits. - Control Clarity: Adding a final
System.out.printlnafter the loop clearly illustrates the transition from the iterative block to the main program flow once the condition fails. ⚠️ Clean Code Warning: In production,do-whileis often replaced by awhileloop with an initial state setup to improve readability. However, it remains the standard for "process-then-check" scenarios.
- Informative Logging: Clearly shows the state of variables during the loop.
- Logic Demonstration: Proves the "execute-first, check-later" nature of
do-while. - Flow Traceability: Explicitly notifies the user when and why the process stops.
Loading data...
gameVersion: 10
Data loading stopped because the loop condition is not met!
Project Structure:
src/com/yurii/pavlenko/
└── GameBootstrapper.java # Main Entry Point & Logic
Code
package com.yurii.pavlenko;
public class GameBootstrapper {
public static void main(String[] args) {
int gameVersion = 10;
do {
System.out.println("Loading data...");
System.out.println("gameVersion: " + gameVersion);
} while (gameVersion != 10);
System.out.println("Data loading stopped because the loop condition is not met!");
}
}This project is licensed under the MIT License.
Copyright (c) 2026 Yurii Pavlenko
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files...
License: MIT