JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to split a string using regular expression?


Description:

We can split a string using regular expression pattern. Example shows how to split the string.


Code:
package com.java2novice.regex;

import java.util.regex.Pattern;

public class MyTokens {

	public static void main(String a[]){
		
		String str = "I have a cat. I play cricket with bat. I dont like rat,"+
			"i hate mats, now break it";
		Pattern ptn = Pattern.compile("(cat|rat|mat|bat)");
		String[] parts = ptn.split(str);
		for(String p:parts){
			System.out.println(p);
		}
	}
}

Output:
I have a 
. I play cricket with 
. I dont like 
,i hate 
s, now break it
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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 abstract class or abstract method?
We cannot create instance for an abstract class. We can able to create instance for its subclass only. By specifying abstract keyword just before class, we can make a class as abstract class.

public abstract class MyAbstractClass{

}

Abstract class may or may not contains abstract methods. Abstract method is just method signature, it does not containes any implementation. Its subclass must provide implementation for abstract methods. Abstract methods are looks like as given below:

public abstract int getLength();
Famous Quotations
We know what we are, but know not what we may be.
-- William Shakespeare

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].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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