Rules for Mexico: Numbers must be 10 digits long Area code is either 2 or 3 digits Remaining phone number has either 7 or 8 digits in groups of 3 or 4

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java_PTA_6作业

java_PTA_6作业

时间包括有年份月分，天数，时分秒

In an interview, I was asked to remove all repeating adjacent characters in a string except one. For example, input : abbccasdjajksdhkjaaaaa output : abcasdjajksdhkja In Java, the syntax will be s.replaceAll("(.)\\1{1,}", "$1");...

This regex extract all the phone number (Egyptian Format: xxx xxxx-xxxx)

matches units that are not next to 'and' (so matches all units next to 'or')