java work

import java.util.*;
public class HailStorm{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    System.out.println("Enter a start number ( Must be an integer )");
    int hail = scan.nextInt();
    do {
    if (hail % 2 == 0) 
    hail = (hail/2);
    System.out.println(hail);
    else hail = ((hail*3)+1)
    System.out.println(hail);
    }while (hail<= 1);
  }
}

ok guis im getting some bullshit errors and im new to this crap so some real help would be sweet. Any and all suggestions would be helpful.

in b4 tl;dr and become an hero

"7 errors found:
File: C:\homework\cs121\HailStorm.java  [line: 11]
Error: C:\homework\cs121\HailStorm.java:11: 'else' without 'if'
File: C:\homework\cs121\HailStorm.java  [line: 11]
Error: C:\homework\cs121\HailStorm.java:11: <identifier> expected
File: C:\homework\cs121\HailStorm.java  [line: 11]
Error: C:\homework\cs121\HailStorm.java:11: ';' expected
File: C:\homework\cs121\HailStorm.java  [line: 12]
Error: C:\homework\cs121\HailStorm.java:12: <identifier> expected
File: C:\homework\cs121\HailStorm.java  [line: 12]
Error: C:\homework\cs121\HailStorm.java:12: <identifier> expected
File: C:\homework\cs121\HailStorm.java  [line: 13]
Error: C:\homework\cs121\HailStorm.java:13: class, interface, or enum expected
File: C:\homework\cs121\HailStorm.java  [line: 14]
Error: C:\homework\cs121\HailStorm.java:14: class, interface, or enum expected
"

>>4
SICP IS CONFUSING