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📌 Java “Hello, World!” Program – Line by Line Explanation

public class Hello {

• public → Makes the class accessible from anywhere.
• class → Keyword used to define a class in Java.
• Hello → Name of the class. ⚠️ Rule: The class name must match the file name (Hello.java).

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    public static void main(String[] args) {

• public → Allows the JVM to access this method.
• static → Enables the method to run without creating an object of the class.
• void → Indicates the method does not return any value.
• main → Entry point of the Java program (execution starts here).
• String[] args → Command-line arguments passed to the program.

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        System.out.println("Hello, World!");

• System → A built-in Java class.
• out → Output stream connected to the console.
• println() → Prints text to the console and moves to a new line.
• "Hello, World!" → The message displayed on the screen.

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    }

• Closes the main method.

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}

• Closes the Hello class.

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✅ Output

Hello, World!

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