Skip to main content

Assignment 2 B Solution

Question 1 Write a program to create an TreeSet of Integer type and perform the below operation on it.​

  1. Display the TreeSet
  2. Ask the user to enter a number and search that number is it present in the list or not.
  3. Remove an element from tree.
import java.util.*;

public class Q1 {
    public static void main(String[] args) {
        TreeSet<Integer> set = new TreeSet<Integer>();
        set.add(10);
        set.add(20);
        set.add(30);
        set.add(40);
        set.add(50);
        System.out.println("TreeSet: " + set);
        
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a number to search: ");
        int searchNumber = sc.nextInt();
        
        if (set.contains(searchNumber)) {
            System.out.println(searchNumber + " is present in the TreeSet.");
        } else {
            System.out.println(searchNumber + " is not present in the TreeSet.");
        }
        
        System.out.print("Enter a number to remove: ");
        int removeNumber = sc.nextInt();
        
        if (set.remove(removeNumber)) {
            System.out.println(removeNumber + " removed from the TreeSet.");
            System.out.println("New TreeSet: " + set);
        } else {
            System.out.println(removeNumber + " is not present in the TreeSet.");
        }
        
        sc.close();
    }
}

Credit:

Question 2 Write a program to create a class named it as Address, having member variable plot no, at, post and required member function. Create a tree map having key as name of a person and value as address. Insert required key and value in the created tree map and display it​

import java.util.*;

class Address {
    String plotNo, at, post;

    Address(String plotNo, String at, String post) {
        this.plotNo = plotNo;
        this.at = at;
        this.post = post;
    }

    String getPlotNo() {
        return plotNo;
    }

    String getAt() {
        return at;
    }

    String getPost() {
        return post;
    }
}

public class Q2 {
    public static void main(String[] args) {
        TreeMap<String, Address> addressBook = new TreeMap<String, Address>();
        addressBook.put("Aditi", new Address("19", "Manorama Estate", "Bhubaneswar"));
        addressBook.put("Vivek", new Address("207", "Sector-20", "Rourkela"));
        addressBook.put("Arya", new Address("123", "Old Town", "Bhubaneswar"));

        for (String name : addressBook.keySet()) {
            Address address = addressBook.get(name);
            System.out.println(name + ": Plot No. " + address.getPlotNo() + ", At " + address.getAt() + ", Post " + address.getPost());
        }
    }
}

Credit:

Question 3 Shortest remaining time next(SRTN) is a scheduling algorithm which serve first the process which having shortest remaining time among all the process. Write a java program which take N process burst time and print the scheduling sequence using SRTN​

info

The answer has not yet been updated.

Question 4 Write a program to create a hash set of type string insert some element into it and display it​

import java.util.*;

public class Q4 {
    public static void main(String[] args) {
        HashSet<String> set = new HashSet<String>();
        set.add("Vivek");
        set.add("Kumar");
        set.add("Mohanta");
        set.add("2141013166");

        System.out.println("The HashSet is: " + set);
    }
}

Credit:

Question 5 Write a program to create a linked hash set of type double insert some element into it and display it​

import java.util.*;

public class Q5 {
    public static void main(String[] args) {
        LinkedHashSet<Double> set = new LinkedHashSet<Double>();
        set.add(10.0);
        set.add(9.9);
        set.add(9.8);
        set.add(9.7);
        set.add(9.6);
        set.add(9.5);
        set.add(9.4);

        System.out.println("The LinkedHashSet is: " + set);
    }
}

Credit:

Question 6 Write a program to create a hash map insert some element into it and display it​

import java.util.*;

public class Q6 {
    public static void main(String[] args) {
        HashMap<String, Double> map = new HashMap<String, Double>();
        map.put("Vivek", 2141013166.0);
        map.put("Section", 2141002.0);
        map.put("CGPA", 9.54);

        for (String key : map.keySet()) {
            System.out.println(key + " value is: " + map.get(key));
        }
    }
}

Credit:

Question 7 Write a program to read N number from user and keep it in suitable data structure so that no duplicate element is present in that​

import java.util.*;

public class Q7 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        HashSet<Integer> set = new HashSet<Integer>();
        
        System.out.print("Enter the number of elements: ");
        int n = sc.nextInt();
        
        System.out.println("Enter elements:");
        for (int i = 0; i < n; i++) {
            int num = sc.nextInt();
            set.add(num); // Add the element to the HashSet
        }
        
        System.out.println("Elements entered without duplicates: " + set);
        
        sc.close();
    }
}

Credit: