Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
The contains() method of the Java KeyValue Tuple
Use the contains() method to search for a value in the KeyValue tuple. Let us first see what we need to work with JavaTuples. To work with KeyValue class in JavaTuples, you need to import the following package.
import org.javatuples.KeyValue;
Note Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for all the steps to run JavaTuples.
Steps: How to run JavaTuples program in Eclipse
The following is an example to implement the contains() method of the KeyValue Tuple in Java.
Example
import org.javatuples.KeyValue;
public class Demo {
public static void main(String[] args) {
KeyValue<Integer, String> kValue = KeyValue.with(77, "Rank");
System.out.println("Key-Value in the KeyValue Tuple = "+kValue);
boolean res = kValue.contains("Rank");
System.out.println("Does the value exist in the Tuple? = "+res);
}
}Output
Key-Value in the KeyValue Tuple = [77, Rank] Does the value exist in the Tuple? = true
Updated on: 30-Jul-2019
51 Views
Advertisements