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// HelloWorld.java public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); // Variables and types int age = 25; double price = 19.99; String name = "Alice"; boolean isActive = true; // String formatting System.out.printf("Name: %s, Age: %d%n", name, age); // Conditional if (age >= 18) { System.out.println(name + " is an adult."); } else { System.out.println(name + " is a minor."); } // Loop for (int i = 1; i <= 5; i++) { System.out.println("Count: " + i); } } }
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