Q: Question 7Write a program to input 10 integer elements in an array and sort them in descending order using bubble sort technique.

import java.util.Scanner; public class KboatBubbleSortDsc { public static void main(String args[]) { Scanner in = new Scanner(System.in); int n = 10; int arr[] = new int[n]; System.out.println("Enter the elements of the array:"); for (int i = 0; i < n; i++) { arr[i] = in.nextInt(); } //Bubble Sort for (int i = 0; i < n - 1; i++) { for (int j = 0; j < n - i - 1; j++) { if (arr[j] < arr[j + 1]) { int t = arr[j]; arr[j] = arr[j+1]; arr[j+1] = t; } } } System.out.println("Sorted Array:"); for (int i = 0; i < n; i++) { System.out.print(arr[i] + " "); } } }Output

Q: Question 8Design a class to overload a function series( ) as follows:double series(double n) with one double argument and returns the sum of the series.sum = (1/1) + (1/2) + (1/3) + .......... + (1/n)double series(double a, double n) with two double arguments and returns the sum of the series.sum = (1/a2) + (4/a5) + (7/a8) + (10/a11) + .......... to n terms

public class KboatSeries { double series(double n) { double sum = 0; for (int i = 1; i <= n; i++) { double term = 1.0 / i; sum += term; } return sum; } double series(double a, double n) { double sum = 0; int x = 1; for (int i = 1; i <= n; i++) { int e = x + 1; double term = x / Math.pow(a, e); sum += term; x += 3; } return sum; } public static void main(String args[]) { KboatSeries obj = new KboatSeries(); System.out.println("First series sum = " + obj.series(5)); System.out.println("Second series sum = " + obj.series(3, 8)); } }Output

Q: Question 9Using the switch statement, write a menu driven program:To check and display whether a number input by the user is a composite number or not.A number is said to be composite, if it has one or more than one factors excluding 1 and the number itself.Example: 4, 6, 8, 9...To find the smallest digit of an integer that is input:Sample input: 6524Sample output: Smallest digit is 2For an incorrect choice, an appropriate error message should be displayed.

import java.util.Scanner; public class KboatNumber { public static void main(String args[]) { Scanner in = new Scanner(System.in); System.out.println("Type 1 for Composite Number"); System.out.println("Type 2 for Smallest Digit"); System.out.print("Enter your choice: "); int ch = in.nextInt(); switch (ch) { case 1: System.out.print("Enter Number: "); int n = in.nextInt(); int c = 0; for (int i = 1; i <= n; i++) { if (n % i == 0) c++; } if (c > 2) System.out.println("Composite Number"); else System.out.println("Not a Composite Number"); break; case 2: System.out.print("Enter Number: "); int num = in.nextInt(); int s = 10; while (num != 0) { int d = num % 10; if (d < s) s = d; num /= 10; } System.out.println("Smallest digit is " + s); break; default: System.out.println("Wrong choice"); } } }Output

Question 1

Question 4Define a class named FruitJuice with the following description:Data MembersPurposeint product_codestores the product code numberString flavourstores the flavour of the juice (e.g., orange, apple, etc.)String pack_typestores the type of packaging (e.g., tera-pack, PET bottle, etc.)int pack_sizestores package size (e.g., 200 mL, 400 mL, etc.)int product_pricestores the price of the productMember MethodsPurposeFruitJuice()constructor to initialize integer data members to 0 and string data members to ""void input()to input and store the product code, flavour, pack type, pack size and product pricevoid discount()to reduce the product price by 10void display()to display the product code, flavour, pack type, pack size and product price

Accepted Answer

import java.util.Scanner;

public class FruitJuice
{
    private int product_code;
    private String flavour;
    private String pack_type;
    private int pack_size;
    private int product_price;
    
    public FruitJuice() {
        product_code = 0;
        flavour = "";
        pack_type = "";
        pack_size = 0;
        product_price = 0;
    }
    
    public void input() {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter Flavour: ");
        flavour = in.nextLine();
        System.out.print("Enter Pack Type: ");
        pack_type = in.nextLine();
        System.out.print("Enter Product Code: ");
        product_code = in.nextInt();
        System.out.print("Enter Pack Size: ");
        pack_size = in.nextInt();
        System.out.print("Enter Product Price: ");
        product_price = in.nextInt();
    }
    
    public void discount() {
        product_price -= 10;
    }
    
    public void display() {
        System.out.println("Product Code: " + product_code);
        System.out.println("Flavour: " + flavour);
        System.out.println("Pack Type: " + pack_type);
        System.out.println("Pack Size: " + pack_size);
        System.out.println("Product Price: " + product_price);
    }
    
    public static void main(String args[]) {
        FruitJuice obj = new FruitJuice();
        obj.input();
        obj.discount();
        obj.display();
    }
}Output

Question 2

Question 5The International Standard Book Number (ISBN) is a unique numeric book identifier which is printed on every book. The ISBN is based upon a 10-digit code.The ISBN is legal if:1 × digit1 + 2 × digit2 + 3 × digit3 + 4 × digit4 + 5 × digit5 + 6 × digit6 + 7 × digit7 + 8 × digit8 + 9 × digit9 + 10 × digit10 is divisible by 11.Example:For an ISBN 1401601499Sum = 1 × 1 + 2 × 4 + 3 × 0 + 4 × 1 + 5 × 6 + 6 × 0 + 7 × 1 + 8 × 4 + 9 × 9 + 10 × 9 = 253 which is divisible by 11.Write a program to:Input the ISBN code as a 10-digit integer.If the ISBN is not a 10-digit integer, output the message "Illegal ISBN" and terminate the program.If the number is divisible by 11, output the message "Legal ISBN". If the sum is not divisible by 11, output the message "Illegal ISBN".

Accepted Answer

import java.util.Scanner;

public class KboatISBNCheck
{
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter the ISBN: ");
        long isbn = in.nextLong();
        
        int sum = 0, count = 0, m = 10;
        while (isbn != 0) {
            int d = (int)(isbn % 10);
            count++;
            sum += d * m;
            m--;
            isbn /= 10;
        }
        
        if (count != 10) {
            System.out.println("Illegal ISBN");
        }
        else if (sum % 11 == 0) {
            System.out.println("Legal ISBN");
        }
        else {
            System.out.println("Illegal ISBN");
        }
    }
}Output

Question 3

Question 6Write a program that encodes a word into Piglatin. To translate word into Piglatin word, convert the word into uppercase and then place the first vowel of the original word as the start of the new word along with the remaining alphabets. The alphabets present before the vowel being shifted towards the end followed by "AY".Sample Input 1: LondonOutput: ONDONLAYSample Input 2: OlympicsOutput: OLYMPICSAY

Accepted Answer

import java.util.Scanner;

public class KboatPigLatin
{
    public static void main(String args[]) {

Scanner in = new Scanner(System.in);
        System.out.print("Enter word: ");
        String word = in.next();
        int len = word.length();

word=word.toUpperCase();
        String piglatin="";
        int flag=0;
        
        for(int i = 0; i < len; i++)
        {
            char x = word.charAt(i);
            if(x=='A' || x=='E' || x=='I' || x=='O' || x=='U')
            {
                piglatin=word.substring(i) + word.substring(0,i) + "AY";
                flag=1;
                break;
            }
        }
        
        if(flag == 0)
        {
            piglatin = word + "AY";
        }
        System.out.println(word + " in Piglatin format is " + piglatin);
    }
}Output

Question 4

Question 7Write a program to input 10 integer elements in an array and sort them in descending order using bubble sort technique.

Accepted Answer

import java.util.Scanner;

public class KboatBubbleSortDsc
{
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        int n = 10;
        int arr[] = new int[n];
        
        System.out.println("Enter the elements of the array:");
        for (int i = 0; i < n; i++) {
            arr[i] = in.nextInt();
        }
        
        //Bubble Sort
        for (int i = 0; i < n - 1; i++) {
            for (int j = 0; j < n - i - 1; j++) {
                if (arr[j] < arr[j + 1]) {
                    int t = arr[j];
                    arr[j] = arr[j+1];
                    arr[j+1] = t;
                }
            } 
        }
        
        System.out.println("Sorted Array:");
        for (int i = 0; i < n; i++) {
            System.out.print(arr[i] + " ");
        }
    }
}Output

Question 5

Question 8Design a class to overload a function series( ) as follows:double series(double n) with one double argument and returns the sum of the series.sum = (1/1) + (1/2) + (1/3) + .......... + (1/n)double series(double a, double n) with two double arguments and returns the sum of the series.sum = (1/a2) + (4/a5) + (7/a8) + (10/a11) + .......... to n terms

Accepted Answer

public class KboatSeries
{
    double series(double n) {
        double sum = 0;
        for (int i = 1; i <= n; i++) {
            double term = 1.0 / i;
            sum += term;
        }
        return sum;
    }
    
    double series(double a, double n) {
        double sum = 0;
        int x = 1;
        for (int i = 1; i <= n; i++) {
            int e = x + 1;
            double term = x / Math.pow(a, e);
            sum += term;
            x += 3;
        }
        return sum;
    }
    
    public static void main(String args[]) {
        KboatSeries obj = new KboatSeries();
        System.out.println("First series sum = " + obj.series(5));
        System.out.println("Second series sum = " + obj.series(3, 8));
    }
}Output

Question 6

Question 9Using the switch statement, write a menu driven program:To check and display whether a number input by the user is a composite number or not.A number is said to be composite, if it has one or more than one factors excluding 1 and the number itself.Example: 4, 6, 8, 9...To find the smallest digit of an integer that is input:Sample input: 6524Sample output: Smallest digit is 2For an incorrect choice, an appropriate error message should be displayed.

Accepted Answer

import java.util.Scanner;

public class KboatNumber
{
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.println("Type 1 for Composite Number");
        System.out.println("Type 2 for Smallest Digit");
        System.out.print("Enter your choice: ");
        int ch = in.nextInt();
        
        switch (ch) {
            case 1:
            System.out.print("Enter Number: ");
            int n = in.nextInt();
            int c = 0;
            for (int i = 1; i <= n; i++) {
                if (n % i == 0)
                    c++;
            }
            
            if (c > 2)
                System.out.println("Composite Number");
            else
                System.out.println("Not a Composite Number");
            break;
            
            case 2:
            System.out.print("Enter Number: ");
            int num = in.nextInt();
            int s = 10;
            while (num != 0) {
                int d = num % 10;
                if (d < s)
                    s = d;
                num /= 10;
            }
            System.out.println("Smallest digit is " + s);
            break;
            
            default:
            System.out.println("Wrong choice");
        }
    }
}Output

Solved 2013 Question Paper ICSE Class 10 Computer Applications