Method overloading in java

Method overloading is a feature in Java that allows multiple methods with the same name to be defined in a class, as long as they have different parameter types. This means that you can have two or more methods with the same name in a class, as long as they take different numbers or types of parameters.

The compiler determines which method to call based on the arguments passed in. The method with the most specific matching parameter list is called. Here’s an example:

public class Calculator {
  public int add(int x, int y) {
    return x + y;
  }

  public double add(double x, double y) {
    return x + y;
  }

  public int add(int x, int y, int z) {
    return x + y + z;
  }
}

In this example, we have three add methods with different parameter types. We can call either method, depending on the types of arguments passed in. For example, we can call add(2, 3) to invoke the first method, add(2.0, 3.0) to invoke the second method, or add(2, 3, 4) to invoke the third method.

Method overloading is useful because it allows you to create methods that perform similar tasks, but with different input parameters. It makes code more readable and easier to use, since you can use the same method name for different types of inputs. However, it’s important to use method overloading judiciously, since too many overloaded methods can make code harder to understand and maintain.