正規表現で24時間形式で時間を検証する方法
24時間形式の正規表現パターンでの時間
([01]?[0-9]|2[0-3]):[0-5][0-9].... 説明
( #start of group #1
[01]?[0-9] # start with 0-9,1-9,00-09,10-19
| # or
2[0-3] # start with 20-23
) #end of group #1
: # follow by a semi colon (:)
[0-5][0-9] # follw by 0..5 and 0..9, which means 00 to 59
24時間制の形式は0-23または00-23から始まり、セミコロン(:)および00-59が続きます。 === Javaの正規表現の例
package com.mkyong.regex;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Time24HoursValidator{
private Pattern pattern; private Matcher matcher;
private static final String TIME24HOURS__PATTERN = "([01]?[0-9]|2[0-3]):[0-5][0-9]";
public Time24HoursValidator(){ pattern = Pattern.compile(TIME24HOURS__PATTERN); }
/** ** ** Validate time in 24 hours format with regular expression ** @param time time address for validation ** @return true valid time fromat, false invalid time format ** / public boolean validate(final String time){
matcher = pattern.matcher(time); return matcher.matches();
} }
=== 一致する時刻形式: {空} 1。 「01:00」、「02:00」、「13:00」、2.「1:00」、「2:00」、「13:01」、3.「23:59」、「15: 00 "4." 00:00 "、" 0:00 " === 時刻形式が一致しません: {空} 1。 "24:00" - 時間が範囲外です[0-23]2. "12:60" - 分が範囲外です[00-59]3. "0:0" - フォーマットが無効で、少なくとも2数字の4桁の「13:1」 - 分のフォーマットが無効で、少なくとも2桁の数字5.「101:00」 - 時間が範囲外です。[0-23] === 単体テスト - Time24HoursValidatorTest
package com.mkyong.regex;
import org.testng.Assert;
import org.testng.annotations.
;
/
Time 24 hours format validator Testing
@author mkyong
** /public class Time24HoursValidatorTest {
private Time24HoursValidator time24HoursValidator;
@BeforeClass public void initData(){ time24HoursValidator = new Time24HoursValidator(); }
@DataProvider public Object[][]ValidTime24HoursProvider() { return new Object[][]{ new Object[]{"01:00"}, new Object[]{"02:00"}, new Object[]{"13:00"}, new Object[]{"1:00"}, new Object[]{"2:00"},new Object[]{"13:01"}, new Object[]{"23:59"}, new Object[]{"15:00"}, new Object[]{"00:00"}, new Object[]{"0:00"} }; }
@DataProvider public Object[][]InvalidTime24HoursProvider() { return new Object[][]{ new Object[]{"24:00"},new Object[]{"12:60"}, new Object[]{"0:0"},new Object[]{"13:1"}, new Object[]{"101:00"} }; }
@Test(dataProvider = "ValidTime24HoursProvider") public void ValidTime24HoursTest(String time) { boolean valid = time24HoursValidator.validate(time); System.out.println("Time24Hours is valid : " + time + " , " + valid); Assert.assertEquals(true, valid); }
@Test(dataProvider = "InvalidTime24HoursProvider", dependsOnMethods="ValidTime24HoursTest") public void InValidTime24HoursTest(String time) { boolean valid = time24HoursValidator.validate(time); System.out.println("Time24Hours is valid : " + time + " , " + valid); Assert.assertEquals(false, valid); } }
=== ユニットテスト - 結果
Time24Hours is valid : 01:00 , true
Time24Hours is valid : 02:00 , true
Time24Hours is valid : 13:00 , true
Time24Hours is valid : 1:00 , true
Time24Hours is valid : 2:00 , true
Time24Hours is valid : 13:01 , true
Time24Hours is valid : 23:59 , true
Time24Hours is valid : 15:00 , true
Time24Hours is valid : 00:00 , true
Time24Hours is valid : 0:00 , true
Time24Hours is valid : 24:00 , false
Time24Hours is valid : 12:60 , false
Time24Hours is valid : 0:0 , false
Time24Hours is valid : 13:1 , false
Time24Hours is valid : 101:00 , false
PASSED: ValidTime24HoursTest(“01:00”)
PASSED: ValidTime24HoursTest(“02:00”)
PASSED: ValidTime24HoursTest(“13:00”)
PASSED: ValidTime24HoursTest(“1:00”)
PASSED: ValidTime24HoursTest(“2:00”)
PASSED: ValidTime24HoursTest(“13:01”)
PASSED: ValidTime24HoursTest(“23:59”)
PASSED: ValidTime24HoursTest(“15:00”)
PASSED: ValidTime24HoursTest(“00:00”)
PASSED: ValidTime24HoursTest(“0:00”)
PASSED: InValidTime24HoursTest(“24:00”)
PASSED: InValidTime24HoursTest(“12:60”)
PASSED: InValidTime24HoursTest(“0:0”)
PASSED: InValidTime24HoursTest(“13:1”)
PASSED: InValidTime24HoursTest(“101:00”)
com.mkyong.regex.Time24HoursValidatorTest Tests run: 15, Failures: 0, Skips: 0
mkyong
Total tests run: 15, Failures: 0, Skips: 0
=== リファレンス http://en.wikipedia.org/wiki/24-hour__clock 正規表現の詳細を知りたいですか?これと古典的な本を強くお勧めします - "正規表現のマスター" + + link://tag/regex/[regex]link://タグ/timestamp/[timestamp]