What is a method A method is a function that at the same time is part of a class that can perform operations on data of that same class. In Java a program consists only of described within them. That is why all the functions of the Java language are methods. Defining and calling functions There are two things that must be done in order to use a function in a program that runs with Java. First you have to define the function which means you need to write all the program statements that make up the function enclosing the statements in braces.
At the same time it is also essential to determine what argum France Email List ents the function must have in order to perform the task for which it is being programmed. In this context the first line of code written tells Java what type of value the function is to return and what arguments to pass to the function when it is called. Arguments that are enclosed in parentheses must be of the same type and in the same order as the arguments given on the first line of the function. The second thing to do to use a function is to call the function.
When a function is called program execution jumps to the commands that make up the function. To do this all the commands of the function are executed so that Java can later return to the line of code that is executed after the call of the functions in Java. Return values in functions in Java In Java functions are the main way we have to divide programs into modules. But some types of functions return a value to the main program. In this sense you can assign return values from a function to a variable.