===== Register.java ==== import java.util.ArrayList; import java.util.HashMap; p
ID: 3809777 • Letter: #
Question
=====Register.java====
import java.util.ArrayList;
import java.util.HashMap;
public class Register {
public static void main(String[] args) {
HashMap<Section, ArrayList<String>> roster = new HashMap<>();
Section s1 = new Section("CSC", 151, 0001, "Bob Charlotte", "Intro to Java");
Section s2 = new Section("CSC", 151, 0001, "Bob C", "Introduction to Java");
Section s3 = new Section("CSC", 151, 0001, "B Charlotte", "Java Introduction");
Section s4 = new Section("CSC", 151, 0002, "Bob C", "Introduction to Java");
Section s5 = new Section("DBA", 151, 0001, "Bob Charlotte", "SQL 1");
Section s6 = new Section("CSC", 251, 0001, "Bob Charlotte", "Adv Java");
registerAStudent(roster, s1, "bob");
registerAStudent(roster, s2, "mike");
registerAStudent(roster, s3, "peter");
registerAStudent(roster, s4, "delco");
registerAStudent(roster, s5, "tobias");
registerAStudent(roster, s6, "monay");
System.out.println(roster);
}
public static void registerAStudent(HashMap<Section, ArrayList<String>> roll, Section s, String student) {
ArrayList<String> victims = roll.get(s);
if (victims == null) {
victims = new ArrayList<>();
victims.add(student);
}
else {
victims.add(student);
}
roll.put(s, victims);
}
}
Create a/chas Section% 5contain Create woks SectionA+containite follmoix4 informatio C4tautSThe r oUMUuul uUformation department (e-4., "CSS" ) courseNumber (e.g., 451 ) e-41 utrsectonNumber (c4.1 1121 ) instructor (eg., "Bob" ) · S4417 title. (ay.,"Teolato'lt-Jan' ) Use Section, objects aite keyr a/ HashMap/uite attached, Register class. Bof, Mike aalPeter shoullMKMP same Register class. Boc, Mike, and Peter should all Ce in same eduster class. ure and leter sito utthe same section. Everyone·k.cue(hint secti 0tla Everyone, eke should be uudt enem secti on sExplanation / Answer
HI, Please find my implementation of Section Class.
Please let me know in case of any issue.
public class Section {
// instance variables
private String department;
private int courseNumber;
private int sectionNumber;
private String instructor;
private String title;
// constructor
public Section(String department, int courseNumber, int sectionNumber, String instructor, String title) {
this.department = department;
this.courseNumber = courseNumber;
this.sectionNumber = sectionNumber;
this.instructor = instructor;
this.title = title;
}
public String getDepartment() {
return department;
}
public int getCourseNumber() {
return courseNumber;
}
public int getSectionNumber() {
return sectionNumber;
}
public String getInstructor() {
return instructor;
}
public String getTitle() {
return title;
}
public void setDepartment(String department) {
this.department = department;
}
public void setCourseNumber(int courseNumber) {
this.courseNumber = courseNumber;
}
public void setSectionNumber(int sectionNumber) {
this.sectionNumber = sectionNumber;
}
public void setInstructor(String instructor) {
this.instructor = instructor;
}
public void setTitle(String title) {
this.title = title;
}
@Override
public String toString() {
return " Department: "+department+" "+
"Section Number: "+sectionNumber+" "+
"Course Number: "+courseNumber+" "+
"Instructor: "+instructor+" "+
"Title: "+title;
}
}
import java.util.ArrayList;
import java.util.HashMap;
public class Register {
public static void main(String[] args) {
HashMap<Section, ArrayList<String>> roster = new HashMap<>();
Section s1 = new Section("CSC", 151, 0001, "Bob Charlotte", "Intro to Java");
Section s2 = new Section("CSC", 151, 0001, "Bob C", "Introduction to Java");
Section s3 = new Section("CSC", 151, 0001, "B Charlotte", "Java Introduction");
Section s4 = new Section("CSC", 151, 0002, "Bob C", "Introduction to Java");
Section s5 = new Section("DBA", 151, 0001, "Bob Charlotte", "SQL 1");
Section s6 = new Section("CSC", 251, 0001, "Bob Charlotte", "Adv Java");
registerAStudent(roster, s1, "bob");
registerAStudent(roster, s2, "mike");
registerAStudent(roster, s3, "peter");
registerAStudent(roster, s4, "delco");
registerAStudent(roster, s5, "tobias");
registerAStudent(roster, s6, "monay");
System.out.println(roster);
}
public static void registerAStudent(HashMap<Section, ArrayList<String>> roll, Section s, String student) {
ArrayList<String> victims = roll.get(s);
if (victims == null) {
victims = new ArrayList<>();
victims.add(student);
}
else {
victims.add(student);
}
roll.put(s, victims);
}
}
/*
Sample run:
{
Department: CSC
Section Number: 1
Course Number: 151
Instructor: Bob Charlotte
Title: Intro to Java=[bob],
Department: CSC
Section Number: 2
Course Number: 151
Instructor: Bob C
Title: Introduction to Java=[delco],
Department: DBA
Section Number: 1
Course Number: 151
Instructor: Bob Charlotte
Title: SQL 1=[tobias],
Department: CSC
Section Number: 1
Course Number: 151
Instructor: B Charlotte
Title: Java Introduction=[peter],
Department: CSC
Section Number: 1
Course Number: 151
Instructor: Bob C
Title: Introduction to Java=[mike],
Department: CSC
Section Number: 1
Course Number: 251
Instructor: Bob Charlotte
Title: Adv Java=[monay]}
*/
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