- Java Arrays
- Java Strings
- Java Collection
- Java 8 Tutorial
- Java Multithreading
- Java Exception Handling
- Java Programs
- Java Project
- Java Collections Interview
- Java Interview Questions
- Spring Boot
- Matcher pattern() method in Java with Examples
- Matcher replaceAll(String) method in Java with Examples
- Matcher appendReplacement(StringBuffer, String) method in Java with Examples
- Matcher reset() Method in Java with Examples
- Matcher reset(CharSequence) method in Java with Examples
- Matcher start() method in Java with Examples
- Matcher start(int) method in Java with Examples
- Matcher start(String) method in Java with Examples
- Matcher end(int) method in Java with Examples
- Matcher end() method in Java with Examples
- Matcher quoteReplacement(String) method in Java with Examples
- Matcher group(String) method in Java with Examples
- Matcher groupCount() method in Java with Examples
- Matcher toMatchResult() method in Java with Examples
- Matcher matches() method in Java with Examples
- Matcher find() method in Java with Examples
- Matcher appendTail(StringBuffer) method in Java with Examples
- Matcher appendReplacement(StringBuilder, String) method in Java with Examples
- Matcher lookingAt() method in Java with Examples
Matcher group() method in Java with Examples
The group() method of Matcher Class is used to get the input subsequence matched by the previous match result.
Parameters: This method do not takes any parameter.
Return Value: This method returns the String which is the input subsequence matched by the previous match.
Exception: This method throws IllegalStateException if no match has yet been attempted, or if the previous match operation failed.
Below examples illustrate the Matcher.group() method:
Current Matcher: java.util.regex.Matcher[pattern=(G*s) region=0, 13 lastmatch=] s s
Current Matcher: java.util.regex.Matcher[pattern=(G*G) region=0, 11 lastmatch=] G G G G G
Reference: Oracle Doc
Please Login to comment...
- Java - util package
- Java-Functions
- Java-Matcher
- 10 Best Tools to Convert DOC to DOCX
- How To Summarize PDF Documents Using Google Bard for Free
- Best free Android apps for Meditation and Mindfulness
- TikTok Is Paying Creators To Up Its Search Game
- 30 OOPs Interview Questions and Answers (2024)
Improve your Coding Skills with Practice
What kind of Experience do you want to share?
Java Tutorial
Control statements, java object class, java inheritance, java polymorphism, java abstraction, java encapsulation, java oops misc.
- Send your Feedback to [email protected]
Help Others, Please Share
Learn Latest Tutorials
Transact-SQL
Reinforcement Learning
R Programming
React Native
Python Design Patterns
Python Pillow
Python Turtle
Preparation
Verbal Ability
Interview Questions
Company Questions
Trending Technologies
Artificial Intelligence
Cloud Computing
Data Science
Machine Learning
B.Tech / MCA
Data Structures
Operating System
Computer Network
Compiler Design
Computer Organization
Discrete Mathematics
Ethical Hacking
Computer Graphics
Software Engineering
Web Technology
Cyber Security
C Programming
Control System
Data Mining
Data Warehouse
The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases. See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.
Questions and Exercises: Classes
Consider the following class:
What are the class variables?
What are the instance variables?
What is the output from the following code:
Write a class whose instances represent a single playing card from a deck of cards. Playing cards have two distinguishing properties: rank and suit. Be sure to keep your solution as you will be asked to rewrite it in Enum Types .
You can use the assert statement to check your assignments. You write:
If the boolean expression is false, you will get an error message. For example,
should return true , so there will be no error message.
If you use the assert statement, you must run your program with the ea flag:
Write a class whose instances represent a full deck of cards. You should also keep this solution.
3. Write a small program to test your deck and card classes. The program can be as simple as creating a deck of cards and displaying its cards.
Check your answers.
About Oracle | Contact Us | Legal Notices | Terms of Use | Your Privacy Rights
Copyright © 1995, 2022 Oracle and/or its affiliates. All rights reserved.
IMAGES
VIDEO
COMMENTS
You can also combine the arithmetic operators with the simple assignment operator to create compound assignments. For example, x+=1; and x=x+1; both increment the value of x by 1. The + operator can also be used for concatenating (joining) two strings together, as shown in the following ConcatDemo program:
Matcher group () method in Java with Examples. The group () method of Matcher Class is used to get the input subsequence matched by the previous match result. Syntax: public String group() Parameters: This method do not takes any parameter. Return Value: This method returns the String which is the input subsequence matched by the previous match.
To assign a value to a variable, use the basic assignment operator (=). It is the most fundamental assignment operator in Java. It assigns the value on the right side of the operator to the variable on the left side. Example: int x = 10; int x = 10; In the above example, the variable x is assigned the value 10.
The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.