Functions in java, python 3, c++ and javascript

 In Java, a function is called a "method." Here is the basic syntax for defining a method in Java:

public static ReturnType methodName(ParameterType param1, ParameterType param2, ...) 
{
    // method body
}

For example, here is a method that takes two integers as parameters and returns their sum:

public static int add(int a, int b) { 
    return a + b; 
}

In Python, a function is defined using the "def" keyword, like this:

def function_name(param1, param2, ...): 
    # function body 
    return result

For example, here is a function that takes a string and an integer as parameters and returns a string that is the original string repeated the specified number of times:

def repeat(string, times): 
    return string * times

In C++, a function is defined using the "return_type function_name(parameters)" syntax, like this:

return_type function_name(parameter_type param1, parameter_type param2, ...) {
    // function body
    return result;
}

For example, here is a function that takes two integers as parameters and returns their sum:

int add(int a, int b) { 
    return a + b; 
}

In JavaScript, a function is defined using the "function" keyword, like this:

function functionName(param1, param2, ...) {
  // function body
  return result;
}

For example, here is a function that takes a string and an integer as parameters and returns a string that is the original string repeated the specified number of times:

function repeat(string, times) { 
    return string.repeat(times); 
}

I hope this helps! Let me know if you have any questions or need further clarification.