Solved 2024 Specimen Paper ICSE Class 10 Computer Applications

boolean dh = True; 
boolean cr= true; 
if (dh && cr)
System.out.println("You cannot go out"); 
else
System.out.println("You can go out");	

void triangle(double b, double h)
{	
    double a; 
    a = 1/2 * b * h;
    System.out.println("Area=" + a);	
}	

int x = 2;
int y = 50;
do{
++x;
y -= x++;
}
while(x <= 10);
return y;

String a = "20";
String b = "23";
int p = Integer.parseInt(a); 
int q = Integer.parseInt(b); 
System.out.print(a + "*" + b);

import java.util.Scanner;
public class Eshop
{
    private String name;
    private double price;
    private double disc;
    private double amount;

    public void accept() {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter item name: ");
        name = in.nextLine();
        System.out.print("Enter price of item: ");
        price = in.nextDouble();
    }
    
    public void calculate() {
        double d = 0.0;
        
        if (price < 1000)
            d = 0.0;
        else if (price <= 25000)
            d = 5.0;
        else if (price <= 57000)
            d = 7.5;
        else if (price <= 100000)
            d = 10.0;
        else
            d = 15.0;
        
        disc = price * d / 100.0;
        amount = price - disc;
        
    }
    
    public void display() {
        System.out.println("Item Name: " + name);
        System.out.println("Net Amount: " + amount);
    }
    
    public static void main(String args[]) {
        Eshop obj = new Eshop();
        obj.accept();
        obj.calculate();
        obj.display();
    }
}

import java.util.Scanner;

public class KboatSelectionSort
{
    public static void main(String args[]) 
    {
        Scanner in = new Scanner(System.in);
        int arr[] = new int[10];
        System.out.println("Enter 10 integers: ");
        for (int i = 0; i < 10; i++) 
        {
            arr[i] = in.nextInt();
        }
        
        for (int i = 0; i < 9; i++) 
        {
            int idx = i;
            for (int j = i + 1; j < 10; j++) 
            {
                if (arr[j] < arr[idx])
                    idx = j;
            }
            
            int t = arr[i];
            arr[i] = arr[idx];
            arr[idx] = t; 
        }
        
        System.out.println("Sorted Array:");
        for (int i = 0; i < 10; i++) 
        {
            System.out.print(arr[i] + " ");
        }
    }
}

import java.util.Scanner;

public class KboatCountVowels
{
    public static void main(String args[]) 
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter the string: ");
        String str = in.nextLine();
        str = str.toUpperCase();
        str += " ";
        int count = 0;
        int len = str.length();
        
        for (int i = 0; i < len - 1; i++) 
        {
            char ch = str.charAt(i);
            if(ch == 'A' 
                || ch == 'E' 
                || ch == 'I'
                || ch == 'O'
                || ch == 'U')
                count++;
        }
        
        System.out.println("String : " + str);
        System.out.println("Number of vowels : " + count);
    }
}

import java.util.Scanner;

public class KboatDDASpArr
{
    public static void main(String args[]) 
    {
        Scanner in = new Scanner(System.in);
        int arr[][] = new int[3][3];
        long evenSum = 0, oddSum = 0;
        System.out.println("Enter the elements of 3 x 3 DDA: ");
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                arr[i][j] = in.nextInt();
            }
        }
        
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                if (arr[i][j] % 2 == 0)
                    evenSum += arr[i][j];
                else
                    oddSum += arr[i][j];
            }
        }
        
        System.out.println("Sum of even elements = " + evenSum);
        System.out.println("Sum of odd elements = " + oddSum);
        if (evenSum == oddSum)
            System.out.println("Special Array");
        else
            System.out.println("Not a Special Array");
    }
}

import java.util.Scanner;

public class KboatDuckNumber
{
    public static void main(String args[]) 
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a number: ");
        int num = in.nextInt();
        int n = num;
        int count = 0;
        
        while (n != 0)    {
            count++;
            n = n / 10;
        }
        
        if (count == 3)
        {
            n = num;
            boolean isDuck = false;
            while(n != 0) 
            {
                if(n % 10 == 0)  
                {  
                    isDuck = true;
                    break;
                }
                n = n / 10;  
            }
            
            if (isDuck) {
                System.out.println("Duck Number");
            }
            else {
                System.out.println("Not a Duck Number");
            }
        }
        else {
            System.out.println("Invalid");
        }
    }
}

import java.util.Scanner;

public class KboatMethodOverload
{
    public void display()
    {
        for(int i = 1; i <= 5; i++) 
        {
            for(int j = 1; j <= i; j++)
            {
                System.out.print(j + " ");
            }
            System.out.println();
        }
    }
    
    public void display(int n)
    {
        while( n != 0)
        {
            int d = n % 10;
            System.out.println(Math.sqrt(d));
            n = n / 10;
        }
    }
    
    public static void main(String args[]) 
    {
        KboatMethodOverload obj = new KboatMethodOverload();
        Scanner in = new Scanner(System.in);
        
        System.out.println("Pattern: ");
        obj.display();
        
        System.out.print("Enter a number: ");
        int num = in.nextInt();
        obj.display(num);
        
    }
}