Breaking News: Grepper is joining You.com. Read the official announcement!

Find the Book id from a map whose name is “java” using stream API java-8.

Pallavi Soorma answered on January 2, 2023 Popularity 1/10 Helpfulness 1/10

answer Find the Book id from a map whose name is “java” using stream API java-8.

Find the Book id from a map whose name is “java” using stream API java-8.

Comment

Map<String, String> books = new HashMap<>();
books.put("123-A", "DS");
books.put( "324-A", "c++");
books.put("213-B", "Java");
Ans -To create stream for map use entrySet and then stream.
Optional<String> result = books.entrySet().
 stream().
 filter(e -> e.getValue().equalsIgnoreCase("Java")).
 map(Map.Entry::getKey).findFirst();
System.out.println(result);

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: api find java map stream using

Link to this answer
Share Copy Link

Contributed on Jan 02 2023

Pallavi Soorma

0 Answers Avg Quality 2/10

Continue with Google

By continuing, I agree that I have read and agree to Greppers's Terms of Service and Privacy Policy.

Find the Book id from a map whose name is “java” using stream API java-8.

Contents

More Related Answers

Find the Book id from a map whose name is “java” using stream API java-8.

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.