Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

PLEASE READ ALL Modify the MergeSort code provided in class (if you find a mistake with it extra credit) (https://repl.it/@ashokbasawapatna/MergeSortExample) to work with Students (No

PLEASE READ ALL

Modify the MergeSort code provided in class (if you find a mistake with it extra credit)

(https://repl.it/@ashokbasawapatna/MergeSortExample) to work with Students (No need for generic types, you will only write Main.java). Then use the compareTo method for strings in Java to sort the students in Alphabetical order via MergeSort.

1) Create an array of 10 students by hand. Make sure it's not in alphabetical order. ONLY USE LOWER CASES FOR NAMES (I'll only test with that).

2) Modify the MergeSort and Merge function prototypes to work with students

3) Inside the Merge function use compareTo to determine which one comes sooner in the alphabet.

If I have two strings a and b

String a="aba";

String b="abb";

String c="aba";

System.out.println(a.compareTo(b));

System.out.println(b.compareTo(a));

System.out.println(c.compareTo(a));

Will output

-1 1 0

Note anything less than zero means the calling object is before the passed object in the dictionary

Zero means they are equal

1 means the calling object is after the passed object in the dictionary

(GIVEN STUDENT CLASS)

public final class Student { private int schoolID; private String name;

public Student(String namePassed,int schoolIDPassed) { schoolID= schoolIDPassed; name= namePassed; }

public int getSchoolID() { return schoolID; }

public void setSchoolID(int schoolIDPassed) { schoolID=schoolIDPassed; }

public String getName() { return name; }

public void setName(String namePassed) { name=namePassed; }

public boolean equals(Object toCompare) { Student temp= (Student) toCompare; return(temp.getSchoolID()==schoolID); } public String toString() { String toReturn="name: "+name+" id: "+schoolID; return (toReturn); }

}

HERE IS GIVEN MAIN CLASS

import java.util.Arrays; class Main { public static void main(String[] args) { Student [] myStudents= new Student [10]; myStudents[0]=new Student("shenice",100); myStudents[1]=new Student("bonnie", 200); myStudents[2]=new Student("johnny",300); myStudents[3]=new Student("olivia",400); myStudents[4]=new Student("ashtrash",500); myStudents[5]=new Student("jeter",600); myStudents[6]=new Student("danielle",700); myStudents[7]=new Student("rodrick",800); myStudents[8]=new Student("jeter",900); myStudents[9]=new Student("zoey",1000); //INSERT YOUR CODE TO SORT HERE AND INSERT YOUR FUNCTIONS BELOW MAIN. DO NOT DELETE THE STUFF UNDER HERE!! i.e. call your function here to sort if(myStudents[0].getName().equals("ashtrash")&&myStudents[1].getName().equals("bonnie")&&myStudents[2].getName().equals("danielle")&&myStudents[3].getName().equals("jeter")&&myStudents[4].getName().equals("jeter") && myStudents[5].getName().equals("johnny") && myStudents[6].getName().equals("olivia") &&myStudents[7].getName().equals("rodrick") && myStudents[8].getName().equals("shenice") &&myStudents[9].getName().equals("zoey")) { System.out.println("Sort Test Passed!"); } else { System.out.println("Sort test failed! Check your code!"); } } //paste your functions down here! }

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Records And Database Management

Authors: Jeffrey R Stewart Ed D, Judith S Greene, Judith A Hickey

4th Edition

0070614741, 9780070614741

More Books

Students also viewed these Databases questions

Question

Which form of proof do you find least persuasive? Why?

Answered: 1 week ago