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Java Java Maps Java Maps Java Maps Quiz

Rob Siepkowski
Rob Siepkowski
7,641 Points
Posted by Rob Siepkowski
Rob Siepkowski
7,641 Points

Java "get" method on a Map. Question from Quiz

/*** This is a quiz question. It is asking us to fill in blank below to retrieve Ravi's grade. I have tried a dozen different variations of studentGradeMap.get() with random spellings and variations of ravi and student and quotes and parens and everything I can think of and nothing is working. please help!! Thank you! ***/

Fill in the blank to retrieve Ravi's Grade from the Map:

import java.util.HashMap; import java.util.Map;

public class Main {

public static void main(String[] args) {
    Student ravi = new Student();
    Student sid = new Student();
    Student grace = new Student();
    Grade A = new Grade();
    Grade B = new Grade();
    Grade C = new Grade();
    Grade D = new Grade();

    Map<Student, Grade> studentGradeMap = new HashMap<>();
    studentGradeMap.put(ravi, B);
    studentGradeMap.put(sid, C);
    studentGradeMap.put(grace, B);

    Grade ravisGrade = // ????? fill in blank here ??????
}

}

class Student { // omitted }

class Grade { // omitted }

4 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

Have you tried

studentGradeMap.get(ravi)

?

Rob Siepkowski
Rob Siepkowski
7,641 Points
Rob Siepkowski
Rob Siepkowski
7,641 Points

Thanks Kris! Much appreciated!!

I thought I had already tried that.

I had tried the exact same thing you wrote, but I was putting ravi in quotes ... "ravi". That's where i was going wrong.

Your answer works perfectly!

Thanks so much!

Anas Ahmad
Anas Ahmad
432 Points
Anas Ahmad
Anas Ahmad
432 Points

Hi there.I was facing the same issue but you already asked the same question thank you so much.

Ben Basty
Ben Basty
23,772 Points
Ben Basty
Ben Basty
23,772 Points

studentGradeMap.get(ravi)

Denson Dube
Denson Dube
2,615 Points
Denson Dube
Denson Dube
2,615 Points

Map <Student,Grade> studentGradeMap = new HashMap<>();