求一正则!

Question

Java后台判断如果一个字符串长度小于6或者是纯数字或者是纯字母的时候renturn false，其他情况return true;

Answer 1

[code="java"]import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Test{
public static boolean filterStr(String str) {
if (str.length() < 6)
return false;
Pattern pattern = Pattern.compile("^([0-9]+)|([a-zA-z]+)$");
Matcher matcher = pattern.matcher(str);
if (matcher.matches()) {
return true;
}
return false;
}

public static void main(String[] args) {
    System.out.println(filterStr("aaa"));
    System.out.println(filterStr("aaaaaa"));
    System.out.println(filterStr("232341345"));
    System.out.println(filterStr("aaa1aaa"));
}

}[/code]

输出:
false
true
true
false