identitycard.java

/** * 去除字符串s左边的半角空格 * @param s 字符串 * @return 去除左边半角空格后的字符串 */

package com.totyuedu.c69.a20080905;

import java.text.SimpleDateFormat;
import java.util.Date;

public class IdentityCard {

    private String id;

    private Date birthday;

    public IdentityCard(String id) throws Exception {
        this.id = id;
        birthday = getBirthday(id);
    }

    private Date getBirthday(String id) throws Exception {
        if (id == null || id.length() != 18) {
            throw new Exception("非法身份证号码");
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        return sdf.parse(id.substring(6, 14));
    }

    public Date getBirthday() {
        return birthday;
    }

    public String getId() {
        return id;
    }

}