Java Regular Expression - Programming Examples

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

• 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?