Factorials in Java

[CodeAdmiral]

For a school project, I am trying to make a program that gets user input and finds the factorial of the input. I wrote this bit of code and got tons of errors. Help, anybody?

import javax.swing.*;
import java.awt.*;
import java.io.*;
import java.util.*;
 
class TestFactorial {
                public int x = 6;
                public int z = 0;
                public boolean xiszero = false;
                for (public int x > 0) {
                        z = (x*x-1);
                        x--;
                }
                for (public int x = 0) {
                        public boolean xiszero = true;
                        break;
                }
                for (public boolean xiszero = true) {
                        System.out.println(z)
                }
}

Errors:
Main.java:10: illegal start of type
for (public int x > 0) {
^
Main.java:10: modifier public not allowed here
for (public int x > 0) {
^
Main.java:10: ')' expected
for (public int x > 0) {
^
Main.java:10: illegal start of type
for (public int x > 0) {
^
Main.java:10: <identifier> expected
for (public int x > 0) {
^
Main.java:10: ';' expected
for (public int x > 0) {
^
Main.java:11: <identifier> expected
z = (x*x-1);
^
Main.java:12: <identifier> expected
x--;
^
Main.java:14: class, interface, or enum expected
for (public int x = 0) {
^
Main.java:14: class, interface, or enum expected
for (public int x = 0) {
^
Main.java:15: class, interface, or enum expected
public boolean xiszero = true;
^
Main.java:16: class, interface, or enum expected
break;
^
Main.java:17: class, interface, or enum expected
}
^
Main.java:18: class, interface, or enum expected
for (public boolean xiszero = true) {
^

[thines01]

You need a

public static void main(String args[])

in your code or a method name to encapsulate that code.

This question comes up a lot on DaniWeb:
http://www.daniweb.com/search.php?q=factorial

...and...

http://www.daniweb.com/software-development/java/threads/393559

[CodeAdmiral]

Where in my code would that line go?

[thines01]

Do you have a HelloWorld program set aside you can reference?
Once you see it, the solution will be clear.