Javaexamples 简明教程 Example - Regular Exp Javaexamples 简明教程 Java Regular Expression - Programming Examples 学习如何使用 Java 编程中的正则表达式。以下是常用示例： How to reset the pattern of a regular expression? How to match duplicate words in a regular expression? How to find every occurance of a word? How to know the last index of a particular word in a string? How to print all the strings that match a given pattern from a file? How to remove the white spaces? How to match phone numbers in a list to a certain pattern? How to count a group of words in a string? How to search a particular word in a string? How to split a regular expression? How to count replace first occourance of a String? How to check check whether date is in proper format or not? How to validate an email address format? How to replace all occurings of a string? How to make first character of each word in Uppercase?