akashkumarcs19

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

    class Question2 {
        public static final int MAX_UNICODE = 65_535;

        public static void main(String[] args) {
            System.out.println(checkWhetherStringIsUnique("Competitive Programming"));
        }

akashkumarcs19

import java.util.HashMap;
import java.util.Scanner;

class Anagram {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        System.out.println("Enter the First string: ");
        String st = s.nextLine();
        System.out.println("Enter the Second string: ");
        String s1 = s.nextLine();

akashkumarcs19

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

    class Duplicates {
        public static Map<Character, Integer> countDuplicateCharacters(String string) {
            var resultMap = new HashMap<Character, Integer>();
            var tempMap = new HashMap<Character,Integer>();
            // write your code here ...
           string= string.toUpperCase();
            char [] temp=string.toCharArray();

akashkumarcs19

class LinkedList{
    static Node head;
     static class Node{
        int data;
        Node next;
        public Node(int data){
            this.data = data;
            this.next = null;
        }
    }

akashkumarcs19

import java.util.Scanner;

class Stack{
    char arr[];
    int topOfStack;
    char temp;
    public Stack(int size){
        arr = new char[size];
        topOfStack=-1;
    }

akashkumarcs19

class Queue1 {
    static Node head;
    Node beginning = null;
    Node topOfQueue = null;

    static class Node {

        int data;
        Node next;

akashkumarcs19

class Queue1 {
    static Node head;
    Node beginning = null;
    Node topOfQueue = null;

    static class Node {

        int data;
        Node next;

akashkumarcs19

class Queue1 {
    static Node head;
    Node beginning = null;
    Node topOfQueue = null;

    static class Node {

        int data;
        Node next;

akashkumarcs19

class Node {
    int data;
    Node next;
    Node(int data ){
        next = null;
        this.data = data;
    }
}
public class PalLinkedList {
      Node head;

akashkumarcs19

import java.util.Scanner;

public class StudentArray {
    Scanner sc = new Scanner(System.in);
    int rollno;
    String name;

    public StudentArray(int rollno, String name) {
        this.rollno = rollno;
        this.name = name;