Static Method That Requires No Arguments And Returns No Value

I am doing a homework assignment and I am clueless as to what I did wrong or supposed to do in terms of placement of coding. If someone could dumb down their response and tell me what I did wrong

This is what I supposed to do:

1.) Type the following shell for the class:

public class ParadiseInfo
{
}

2.) Between curly braces of the class, indent a few spaces and create the shell for the main() method:

public static void main(String[] args)
{
}

3.) Between the braces of the main()Method, insert a call to the displayInfo() method:

displayInfo();

4.) Place the displayInfo() method outside of the main() method, just before the closing curly brace for the ParadiseInfo class:

public static void displayInfo()
{
system.out.println ("Paradise Day Spa wants to pamper you.");
system.out.println ("We will make you look good.");
}

This is what I attempted to do: I know it is wrong I am just clueless on where to put the code and why

public class ParadiseInfo
{
displayInfo();
public static void main(String[] args)
{
public static void displayInfo();
}
system.out.println("Paradise Day Spa wants to pamper you.");
system.out.println("We will make you look good.");
}

--- Update ---

I have also tried this:

public class ParadiseInfo
{
displayInfo();
public static void main(String[] args)
{
}
public static void displayInfo();
{

[Code]...

The very last attempt I only ended up with one error which is:

G:ParadiseInfo.java:3: error: invalid method declaration; return type required
displayInfo();
^
1 error

Tool completed with exit code 1

Java is very new to me and I have no clue on what I am doing wrong.