正規表現で時間を12時間形式で検証する方法
12時間形式の正規表現パターンでの時間
(1[012]|[1-9]):[0-5][0-9](\\s)?(?i)(am|pm)
説明
( #start of group #1 1[012] # start with 10, 11, 12 | # or [1-9] # start with 1,2,...9 ) #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 (\\s)? # follow by a white space (optional) (?i) # next checking is case insensitive (am|pm) # follow by am or pm
12時間制の形式は0から12まで、セミコロン(:)および00-59で始まり、amまたはpmで終わります。
Javaの正規表現の例
package com.mkyong.regex; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Time12HoursValidator{ private Pattern pattern; private Matcher matcher; private static final String TIME12HOURS__PATTERN = "(1[012]|[1-9]):[0-5][0-9](\\s)?(?i)(am|pm)"; public Time12HoursValidator(){ pattern = Pattern.compile(TIME12HOURS__PATTERN); } /** ** ** Validate time in 12 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。 「午前1時」、「午前1時」、「午後1時」、「午後1時」、「午後1時」、「午後1時」、「12時50分」、
時刻の形式が一致しません:
{空} 1。 “0:00 am” – 時間が範囲外です。[1-12]2. “10:00 am” – 空白は1つだけです。3. “1:00” – amまたはpmで終了する必要があります。 :00 am “-24時間形式は許可されていません5.” 1:61 pm ” – 分が範囲外です[0-59]6.” 13:00 pm ” – 時が範囲外です[1-12]7. “001:50 pm” – 無効な時間形式8. “10:99 am” – 分が範囲外です[0-59]9. “01:00 pm” – 24時間形式は許可されません10. ” 1:00 bm ” – amまたはpmで終わらなければならない
単体テスト – Time12HoursValidatorTest
package com.mkyong.regex; import org.testng.Assert; import org.testng.annotations.** ; /** ** ** Time 12 hours format validator Testing ** @author mkyong ** ** /public class Time12HoursValidatorTest { private Time12HoursValidator time12HoursValidator; @BeforeClass public void initData(){ time12HoursValidator = new Time12HoursValidator(); } @DataProvider public Object[][]ValidTime12HoursProvider() { return new Object[][]{ new Object[]{"1:00am"}, new Object[]{"1:00 am"}, new Object[]{"1:00 AM"}, new Object[]{"1:00pm"}, new Object[]{"1:00 pm"},new Object[]{"1:00 PM"}, new Object[]{"12:50 pm"} }; } @DataProvider public Object[][]InvalidTime12HoursProvider() { return new Object[][]{ new Object[]{"0:00 am"},new Object[]{"10:00 am"}, new Object[]{"1:00"},new Object[]{"23:00 am"}, new Object[]{"1:61 pm"},new Object[]{"13:00 pm"}, new Object[]{"001:50 pm"},new Object[]{"10:99 am"}, new Object[]{"01:00 pm"}, new Object[]{"1:00 bm"} }; } @Test(dataProvider = "ValidTime12HoursProvider") public void ValidTime12HoursTest(String time) { boolean valid = time12HoursValidator.validate(time); System.out.println("Time12Hours is valid : " + time + " , " + valid); Assert.assertEquals(true, valid); } @Test(dataProvider = "InvalidTime12HoursProvider", dependsOnMethods="ValidTime12HoursTest") public void InValidTime12HoursTest(String time) { boolean valid = time12HoursValidator.validate(time); System.out.println("Time12Hours is valid : " + time + " , " + valid); Assert.assertEquals(false, valid); } }
ユニットテスト – 結果
Time12Hours is valid : 1:00am , true Time12Hours is valid : 1:00 am , true Time12Hours is valid : 1:00 AM , true Time12Hours is valid : 1:00pm , true Time12Hours is valid : 1:00 pm , true Time12Hours is valid : 1:00 PM , true Time12Hours is valid : 12:50 pm , true Time12Hours is valid : 0:00 am , false Time12Hours is valid : 10:00 am , false Time12Hours is valid : 1:00 , false Time12Hours is valid : 23:00 am , false Time12Hours is valid : 1:61 pm , false Time12Hours is valid : 13:00 pm , false Time12Hours is valid : 001:50 pm , false Time12Hours is valid : 10:99 am , false Time12Hours is valid : 01:00 pm , false Time12Hours is valid : 1:00 bm , false PASSED: ValidTime12HoursTest("1:00am") PASSED: ValidTime12HoursTest("1:00 am") PASSED: ValidTime12HoursTest("1:00 AM") PASSED: ValidTime12HoursTest("1:00pm") PASSED: ValidTime12HoursTest("1:00 pm") PASSED: ValidTime12HoursTest("1:00 PM") PASSED: ValidTime12HoursTest("12:50 pm") PASSED: InValidTime12HoursTest("0:00 am") PASSED: InValidTime12HoursTest("10:00 am") PASSED: InValidTime12HoursTest("1:00") PASSED: InValidTime12HoursTest("23:00 am") PASSED: InValidTime12HoursTest("1:61 pm") PASSED: InValidTime12HoursTest("13:00 pm") PASSED: InValidTime12HoursTest("001:50 pm") PASSED: InValidTime12HoursTest("10:99 am") PASSED: InValidTime12HoursTest("01:00 pm") PASSED: InValidTime12HoursTest("1:00 bm") =============================================== com.mkyong.regex.Time12HoursValidatorTest Tests run: 17, Failures: 0, Skips: 0 =============================================== =============================================== mkyong Total tests run: 17, Failures: 0, Skips: 0 ===============================================
リファレンス
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