User defined procedures and functions presentation 1 variant

User defined procedures and functions

LEARNING OBJECTIVES

write a code in the programming language using functions and procedures

A function is a part of a program that has its own name.
This name can be used in the program as a command (this command is called a function call).
When a function is called, the commands of which it consists are executed. A function call can return a value (similar to an operation) and therefore can be used in an expression along with operations.
A method is a function that is part of a class that can perform operations on data of this class. In the Java language, the entire program consists only of classes and functions can be described only inside them. That is why all functions in the Java language are methods.

Methods are always defined inside classes:


minOfTwoNumbers is the method we defined in the Main class, let's consider it.
public - access type (the method can be called from another class). There are other types of access, for example private (the method is available only inside the class) and protected.
static - means that the method is static, it belongs to the class Main, and not to a specific instance of the class Main. We can call this method from another class like this: Main.minOfTwoNumbers ().

public class {
public static (type parameter1, type parameter2) {
}
public static void main(String[] args) {
// Your software code is here
}
}

In lines 3 through 11, the minOfTwoNumbers method is described.
On lines 5-9 performs a comparison of the values of a and b
On line 13, the method is called to determine the minimum of two numbers (4 and -6).

Create a method that imposes a maximum of two numbers.
System.out.println("max = "+maxOfTwoNumbers(0, -99));


2. Create a method to calculate the 3rd power of the number.
System.out.println("7*7*7 = "+Cube(7));

Create a method that defines even and odd numbers.
Create a method that determines the area and circumference of the circle.

Today I learned ...
It was hard to…
I realized that ...
I learned…
I was able to ...
it was interesting to know that ...
I was surprised ...
I wanted…