Page 411 - CA_Blue( J )_Class10
P. 411

• Print the square of each element of the array.                                            [2022]
                   Ans.  import java.util.Scanner;
                       public class Array
                       {
                           public static void main()
                           {
                               double  ar[] = new double[20];
                               double p = 1.0;
                               Scanner sc = new Scanner(System.in);
                               for (int i = 0; i < 20; i++)
                               {
                                   System.out.print("Enter the number ar[" + i + "]:");
                                   ar[i] = sc.nextDouble();
                               }
                               for (int i = 0; i < 20; i++)
                               {
                                   p = p * ar[i];
                               }
                               System.out.println("The product of all the elements is: "+p);
                               System.out.println("Square of each element of the array is: ");
                               for (int i = 0; i < 20; i++)
                               {
                                   System.out.println(ar[i]*ar[i]);
                               }
                           }
                       }
                    16.  Write a program to input 15 integer elements in an array and sort them in ascending order using the bubble sort technique.
                                                                                                                    [2019]
                   Ans.  import java.util.*;
                       class bubblesorting
                       {
                           public static void main()
                           {
                               Scanner sc= new Scanner(System.in);
                               int a[] = new int[15];
                               int i,j,temp;
                               for(i = 0; i < 15; i++)
                               {
                                   System.out.println("Enter numbers:");
                                   a[i] = sc.nextInt();
                               }
                               for(i = 0; i < 15; i++)
                               {
                                   for( j = 0; j < 14 - i; j++)
                                   {
                                       if(a[j] > a[j + 1])
                                       {
                                           temp = a[j];
                                           a[j] = a[j + 1];
                                           a[j + 1] = temp;
                                       }
                                   }
                               }
                               System.out.println("Sorted elements:");
                               for(i = 0; i < 15; i++)



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