Stept 3

src/com/rhizome/example/dao/EmployeeDAO.java

@@ -82,4 +82,43 @@ public class EmployeeDAO {
 		}
 		return rtnList;
 	}
+	//use selectById make the method 
+	public List<EmployeeDTO> selectById(int empId) throws SQLException, ClassNotFoundException {
+		//calling to DTO and new inout array
+		List<EmployeeDTO> rtnList = new ArrayList<>();
+		//(StringBuilder) ကို သုံးခြင်းသည် Code များကို ဖတ်ရလွယ်ကူစေရန်၊ ပြင်ဆင်ရလွယ်ကူစေရန်
+		StringBuilder sql = new StringBuilder();
+		//append မသုံးရင်စာ‌ကြောင်းပိုရှဉ္လို့ append နဲံရေး
+		sql.append(" SELECT ");
+		sql.append("    " + ID_EMPLOYEE + ",");
+		sql.append("    " + NM_EMPLOYEE + ",");
+		sql.append("    " + KN_EMPLOYEE + ",");
+		sql.append("    " + MAIL_ADDRESS + ",");
+		sql.append("    " + PASSWORD + ",");
+		sql.append("    " + ID_DEPARTMENT);
+		sql.append(" FROM ");
+		sql.append("    " + TBL_NAME);
+		sql.append(" WHERE ");
+		sql.append("    " + ID_EMPLOYEE + " = ? ");
+
+		try {
+			this.stmt = con.prepareStatement(sql.toString());
+			this.stmt.setInt(1, empId);
+			rs = stmt.executeQuery();
+			while (rs.next()) {
+				EmployeeDTO dto = new EmployeeDTO();
+				dto.setIdEmployee(rs.getInt(ID_EMPLOYEE));
+				dto.setNmEmployee(rs.getString(NM_EMPLOYEE));
+				dto.setKnEmployee(rs.getString(KN_EMPLOYEE));
+				dto.setMailAddress(rs.getString(MAIL_ADDRESS));
+				dto.setPassword(rs.getString(PASSWORD));
+				dto.setIdDepartment(rs.getInt(ID_DEPARTMENT));
+
+				rtnList.add(dto);
+			}
+		} finally {
+			DbUtil.closeStatement(this.stmt);
+		}
+		return rtnList;
+	}
 }

src/com/rhizome/example/main/Main.java

@@ -89,9 +89,22 @@ public class Main {
 				//empList = empDao.selectAll();
 				empList = empDao.selectAll();
 				break;
+			case "2":
+				// inputCheck 方法ကို သုံးပြီး ID ရိုက်ခိုင်းပါ (数値 check အတွက် true ထည့်ပါ)
+				String strId = inputCheck("ID", true);
+			    int id = Integer.parseInt(strId);
+			    empList = empDao.selectById(id);
+			    break;
 			default:
 				return;
 			}
+
+			// ရှာဖွေတွေ့ရှိခြင်း မရှိပါက
+			if (empList.isEmpty()) {
+				System.out.println("入力された値で情報がみつかりませんでした");
+				return;
+			}
+		
 			for (EmployeeDTO emp : empList) {
 				//for (String emp : empList) {
 				//System.out.println(emp);