Friday, 12 January 2018

How to use logical operators | Java Regex | Java Regular Expressions | Regex in java


Click here to watch on Youtube :
https://www.youtube.com/watch?v=h1fQkZW0mzs&list=UUhwKlOVR041tngjerWxVccw

RegexDemo1.java

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * Logical Operators
 *
 */

public class RegexDemo1
{

    public static void main(String[] args)
    {
        /*
         * The Logical Operator XY matches the X followed by Y.
         */

        Pattern pattern = Pattern.compile("to");
        Matcher matcher = pattern.matcher("Welcome to India");

        while (matcher.find())
        {
            System.out.println(matcher.group() + ", Match String start(): "
                    + matcher.start());
        }
    }

}

Output

to, Match String start(): 8

RegexDemo2.java

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * Logical Operators
 *
 */

public class RegexDemo2
{

    public static void main(String[] args)
    {
        /*
         * The Logical Operator X|Y matches the X or Y.
         */

        Pattern pattern = Pattern.compile("t|o");
        Matcher matcher = pattern.matcher("Welcome to India");

        while (matcher.find())
        {
            System.out.println(matcher.group() + ", Match String start(): "
                    + matcher.start());
        }
    }

}

Output

o, Match String start(): 4
t, Match String start(): 8
o, Match String start(): 9

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/RegexDemo_logical_operatior_to.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/RegexDemo_logical_operatior_to

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/7d1a1b8046fa2c6f340631d1f5b0f99be87e7675/BasicJava/RegexDemo_logical_operatior_to/?at=master

See also:
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