checkbox in java

// 获取学生信息
	public ArrayList getRecords(Hashtable ht) {
		ArrayList<HashMap> list = null;
		String stu_dept = "<select id=\"BO_STUDENT_DEPT\" width=\"100px\" >";
		String linkStr = "";
		String[] depts = { "计算机", "经管", "英语" };
		try {
			list = stuDao.getRecords(ht);
			int j = 0;
			for (HashMap map : list) {
				if (map != null
				        && !"".equals(map.get("BO_STUDENT_DEPT").toString())) {
					for (int i = 0; i < depts.length; i++) {
						if (depts[i].equals(map.get("BO_STUDENT_DEPT")
						        .toString())) {
							stu_dept += "<option value=\"" + depts[i]
							        + "\" selected>" + depts[i] + "<option>";
						} else {
							stu_dept += "<option value=\"" + depts[i] + "\" >"
							        + depts[i] + "<option>";
						}
					}
					stu_dept += "</select>";
					map.put("BO_STUDENT_DEPT", stu_dept);
				}

				if (map != null) {
					Date date = new Date();
					String year = DateUtil.formatYMD(date);
					if (map.get("BO_STUDENT_YEAR") != null
					        && !"".equals(map.get("BO_STUDENT_YEAR").toString())) {
						linkStr = "<input type=text size=12 id=BO_STUDENT_YEAR name=BO_STUDENT_YEAR"
						        + j
						        + " value="
						        + map.get("BO_STUDENT_YEAR").toString()
						        + " readonly "
						        + "onfocus=\"WdatePicker({skin:'whyGreen',dateFmt:'yyyy-MM-dd'})\" onChange=\"saveEnrollmentDate('"
						        + j
						        + "','"
						        + map.get("BO_STUDENT_YEAR").toString()
						        + "')\" "
						        + "class=\"Wdate\" MINDATE=\"#F{$('BO_STUDENT_YEAR"
						        + j
						        + "').innerText}\" style=\"background-color: white;\">";
					} else {
						linkStr = "<input type=text size=12 id=BO_STUDENT_YEAR name=BO_STUDENT_YEAR"
						        + j
						        + " value="
						        + year
						        + "  readonly "
						        + "onfocus=\"WdatePicker({skin:'whyGreen',dateFmt:'yyyy-MM-dd'})\" onChange=\"saveEnrollmentDate('"
						        + j
						        + "','"
						        + map.get("BO_STUDENT_YEAR").toString()
						        + "')\" "
						        + "class=\"Wdate\" MINDATE=\"#F{$('BO_STUDENT_YEAR"
						        + j
						        + "').innerText}\" style=\"background-color: white;\">";
					}
					j++;
					map.put("BO_STUDENT_YEAR", linkStr);
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return list;
	}