java Function

A Java function is a block of code that performs a specific task and returns a value. Functions are a fundamental building block of most programming languages, including Java. In Java, functions are defined using the "public static" keywords followed by the return type, function name, and any input parameters.

For example, the following function takes two integer parameters and returns their sum:

public static int sum(int num1, int num2) {
  int result = num1 + num2;
  return result;
}

To use this function in another part of our code, we can call it like this:

int x = 5;
int y = 10;
int z = sum(x, y); // z is now 15

Functions in Java can also be overloaded, which means that we can define multiple functions with the same name but different parameter types. This allows us to perform similar tasks with different types of data.

Overall, functions are an essential part of Java programming and are used extensively to organize code and make it more modular and reusable.