import java.util.*; public class Program { static int dashsize = 45; public static void main(String[] args) { getStudentList(setStudentList()); } //Setting students list in HashMap public static Map> setStudentList() { Map> map = new HashMap<>(); List list1 = new ArrayList(); list1.add(new Student(7920723, "AJ")); list1.add(new Student(5818712, "Avinash")); list1.add(new Student(7920723, "Anant - MySelf")); map.put(1, list1); List list2 = new ArrayList(); list2.add(new Student(7920723, "Ajay Devgn - My Fav")); list2.add(new Student(11816327, "Kajol")); map.put(2, list2); List list3 = new ArrayList(); list3.add(new Student(11066727, "Tanay - Thekedar")); list3.add(new Student(8843885, "Mr. Jaiswal - CEO")); list3.add(new Student(9233826, "Satnam Singh")); list3.add(new Student(14955296, "Abhay Pratap Singh")); list3.add(new Student(12077304, "Mr. King - Vice President")); list3.add(new Student(2837684, "Shubham Verma")); list3.add(new Student(14875620, "Virat Kohli")); list3.add(new Student(15771326, "Vinay_GB")); list3.add(new Student(11186837, "Alpha5&5")); list3.add(new Student(14676348, "Omega™")); list3.add(new Student(14669031, "Sir Arjun Verma")); // list3.add(new Student(12052039, "Sam (I am Saikh)")); map.put(3, list3); List list4 = new ArrayList(); list4.add(new Student(11816327, "Mairuna")); list4.add(new Student(6804430, "R K")); list4.add(new Student(11516328, "Ashkha Sinha")); list4.add(new Student(9391360, "Palak")); list4.add(new Student(13786695, "D_Shah")); list4.add(new Student(13299247, "Humayra")); list4.add(new Student(15813521, "Alina")); list4.add(new Student(14384723, "Jelena")); list4.add(new Student(6566977, "Kate")); list4.add(new Student(12125513, "Emese Kati")); list4.add(new Student(12242887, "Gwen")); list4.add(new Student(14077830, "Choco/Oma/Scarlet")); list4.add(new Student(15684527, "Elizabeth Kuleshova")); map.put(4, list4); List list5 = new ArrayList<>(); list5.add(new Student(9210792, "Ketan [# Be Happy]")); list5.add(new Student(2200299, "(Pro)metheus")); list5.add(new Student(7885877, "BroForOps")); list5.add(new Student(3745102, "King Micheal")); list5.add(new Student(1215971, "Joy")); list5.add(new Student(16454530, "Rohit Kanojiya")); list5.add(new Student(13155230, "Marzan")); map.put(5, list5); return map; } //getting student list from HashMap public static void getStudentList(Map> map) { List list = null; System.out.println("Sr. : SL Id : Name"); for(int i = 0; i < dashsize;i++) { System.out.print("-"); } System.out.println(); for(int i = 0; i < dashsize;i++) { System.out.print("-"); } System.out.println(); int j = 1; for(Integer id : map.keySet()) { list = map.get(id); if(id == 3) { System.out.println("AIMU (All India Majdoor Union) Members"); for(int i = 0; i < dashsize;i++) { System.out.print("-"); } System.out.println(); } else if(id == 4) { System.out.println("Girls Members"); for(int i = 0; i < dashsize;i++) { System.out.print("-"); } System.out.println(); } else if(id == 5) { System.out.println("Other Members"); for(int i = 0; i < dashsize;i++) { System.out.print("-"); } System.out.println(); } if(list != null) { for(Student s : list) { String slid = Integer.toString(s.getId()); if(slid.length() == 7) { slid = "0" + slid; } if(j < 10) { System.out.println("0" + j + " : " + slid + " : " + s.getName()); } else { System.out.println(j + " : " + slid + " : " + s.getName()); } j++; } } for(int i = 0; i < dashsize;i++) { System.out.print("-"); } System.out.println(); } } } public class Student { private int id; private String name; public Student(int id, String name) { this.id = id; this.name = name; } public void setId(int id) { this.id = id; } public int getId() { return id; } public void setName(String name) { this.name = name; } public String getName() { return name; } }

Map Implement with 🆂🅻 ᶠᴿᴵᴱᴺᴰˢ 🅛🅘🅢🅣