1:write a program to create a class and implement the concept of constructor overloading ,method overloading, static method ?

 class MathUtils {

    // Constructor Overloading

    MathUtils() {

        System.out.println("Default constructor");

    }

    MathUtils(int num) {

        System.out.println("Constructor with int parameter: " + num);

    }

    MathUtils(double num) {

        System.out.println("Constructor with double parameter: " + num);

    }

    // Method Overloading

    int add(int a, int b) {

        return a + b;

    }

    double add(double a, double b) {

        return a + b;

    }

    String add(String str1, String str2) {

        return str1 + str2;

    }

    // Static Method

    static void printMessage(String message) {

        System.out.println("Static method message: " + message);

    }

}

public class Main {

    public static void main(String[] args) {

        // Constructor Overloading

        MathUtils defaultMath = new MathUtils();

        MathUtils intMath = new MathUtils(5);

        MathUtils doubleMath = new MathUtils(3.14);

        // Method Overloading

        MathUtils mathUtils = new MathUtils();

        int sum1 = mathUtils.add(2, 3);

        double sum2 = mathUtils.add(2.5, 3.5);

        String concatenated = mathUtils.add("Hello, ", "world!");

        System.out.println("Sum of integers: " + sum1);

        System.out.println("Sum of doubles: " + sum2);

        System.out.println("Concatenated strings: " + concatenated);

        // Static Method

        MathUtils.printMessage("This is a static method example.");

    }

}