How would I write this Java program given the following specification and provide comments 

The goal is to read in a list of people and their quiz scores into an array, sort the class by their exam scores, and output the name of the student with a particular ranking. Input Format The first line contains n, the number of students. The second line contains X, the ranking to output. 

This is followed by Y pairs of student names and exam scores, each on a separate line.

Output 

Format The name of the student who came in rth rank in the class. 

Constraints 0≤n≤100 

Sample Input

 5

 66

 Cara

 21

 Mary 

67

 Sam

 99

 Mia 

87

 James

 53

Sample Output 

Cara