This is an example of how to use a Pattern Matcher to match an input String with a specified pattern. Matching a String to a pattern with a Matcher implies that you should:
- Compile a String regular expression to a Pattern, using
compile(String regex)API method of Pattern. - Use
matcher(CharSequence input)API method of Pattern to create a Matcher that will match the given String input against this pattern. - Use
lookingAt()API method to match the input sequence, starting at the beginning of the region, against the pattern.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MatcherPatt {
public static void main(String[] args) {
Pattern pattern = Pattern.compile("(\\w+)\s(\\d+)");
Matcher m = pattern.matcher("Bananas 123");
m.lookingAt();
System.out.println("Name: " + m.group(1));
System.out.println("Number: " + m.group(2));
}
}
Output:
Name: Bananas
Number: 123
This was an example of how to use a Pattern Matcher in Java.
