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：

Learn how to use regular expression in Java programming. Here are most commonly used examples −

  1. How to reset the pattern of a regular expression?

  2. How to match duplicate words in a regular expression?

  3. How to find every occurance of a word?

  4. How to know the last index of a particular word in a string?

  5. How to print all the strings that match a given pattern from a file?

  6. How to remove the white spaces?

  7. How to match phone numbers in a list to a certain pattern?

  8. How to count a group of words in a string?

  9. How to search a particular word in a string?

  10. How to split a regular expression?

  11. How to count replace first occourance of a String?

  12. How to check check whether date is in proper format or not?

  13. How to validate an email address format?

  14. How to replace all occurings of a string?

  15. How to make first character of each word in Uppercase?