Programming Concepts using Java Quiz 2: 10 July 2022 (May 2022 term)

1import java.util.*;
2class Address implements Cloneable{
3    private String city;
4    private int pinCode;
5    // constructor here to instantiate city, pinCode
6    public void setCity(String c){
7        city = c;
8    }
9}
10class Temple implements Cloneable{
11    private Address adr;
12    private String tempName;
13    // constructor here to instantiate adr, tempName
14    public Address getAddress(){
15        return adr;
16    }
17    public void setTempName(String t){
18      tempName = t;
19
20    }
21    public Temple clone() throws CloneNotSupportedException{
22        Temple t = (Temple) super.clone();
23        return t;
24    }
25    //Overrides the method toString()
26    // to return tempName + ":"+ city + ":" + pinCode;
27}
28public class Main{
29    public static void main(String[] args){
30        Temple t1 = new Temple(new Address("Madurai", 625001), "Meenakshi temple");
31        try{
32            Temple t2 = t1.clone();
33            t2.setTempName("Golden temple");
34            t2.getAddress().setCity("Amritsar");
35            System.out.println(t1);
36            System.out.println(t2);
37        }
38        catch(CloneNotSupportedException e){
39            System.out.println("Cloning not supported");
40        }
41    }
42}

1import java.util.*;
2public class Test{
3    public static void main(String[] args){
4        var bill_march = new LinkedHashMap<String, Integer>();
5        bill_march.put("suresh", 100);
6        bill_march.put("mukesh", 150);
7        bill_march.put("ganesh", 80);
8        bill_march.put("pranay", 200);
9        var bill_april = new LinkedHashMap<String, Integer>();
10        bill_april.put("suresh", 200);
11        bill_april.put("mukesh", 100);
12        bill_april.put("ganesh", 100);
13        bill_april.put("pranay", 100);
14        var totalBill = new LinkedHashMap<String, Integer>();
15
16        for(Map.Entry<String, Integer> e : bill_march.entrySet())
17            totalBill.put(e.getKey(), e.getValue());
18
19        for(Map.Entry<String, Integer> e : bill_april.entrySet())
20            totalBill.merge(e.getKey(), e.getValue(), (x, y) -> y + x);
21
22        System.out.println(totalBill);
23    }
24}

1public class ArrayOperations{
2  public <T extends Comparable> T min(T[] arr){
3    // code for finding the minimum
4  }
5  public <T extends Number> T sum(T[] arr){
6    // code for finding the sum of elements
7  }
8  public <T> int count(T[] arr){
9    // code for finding the count of elements
10  }
11}