JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Regular Expression Examples

This page shows examples on how to use regular expressions within java.

List Of Regular Expression Sample Programs:

  1. Simple regex pattern matching using string matches().
  2. Simple java regex using Pattern and Matcher classes.
  3. Java regex with case insensitive.
  4. How to validate IP address using regular expression?
  5. How to replace a pattern using regular expression in java?
  6. How to remove multiple spaces with a single space with in a string?
  7. How to validate user name using regular expression?
  8. How to validate email address using regular expression?
  9. How to validate password using regular expression?
  10. How to validate file extensions using regular expression in java?
  11. How to validate date format using regular expression in java?
  12. How to capture or extract a value(s) from text using regular expression in java?
  13. How to split a string using regular expression?
Knowledge Centre
What is java static import?
By using static imports, we can import the static members from a class rather than the classes from a given package. For example, Thread class has static sleep method, below example gives an idea:

import static java.lang.Thread;
public class MyStaticImportTest {
public static void main(String[] a) {
try{
sleep(100);
} catch(Exception ex){

}
}
}
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected] or you can comment on the page.

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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