字符串分隔(java)

import java.util.*;

public class SplitString {

public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int num = scan.nextInt();

List<String> strList = new LinkedList<String>();
while (num != -1) {
strList.add(scan.nextLine());
num--;
}

Iterator<String> itor = strList.iterator();
while (itor.hasNext()) {
String str = itor.next();
splitStr(str);
}
}

private static void splitStr(String str) {
if(str.length() <= 8){
if(str.length()==0)
return;
else{
int len = str.length();
for (int i = 0; i < 8-len; i++) {
str = str + "0";
}
print(str);
}
}
else{
String str1 = str.substring(0, 8);
print(str1);
String str2 = str.substring(8);
splitStr(str2);
}

}

private static void print(String str) {
System.out.println(str);
}
}