Page 322 - CA_Blue( J )_Class9
P. 322

Ans.  class pattern
                         {
                             public static void main()
                             {
                                 int i,j;
                                 for(i=1;i<=5;i++)
                                 {
                                     for(j=1;j<=i;j++)
                                     {
                                         if(i%2==0)
                                         {
                                             System.out.print("&");
                                         }
                                         else
                                         {
                                             System.out.print("$");
                                         }
                                     }
                                     System.out.println();
                                 }
                             }
                         }
                  Question 8.                                                                                      [15]
                  Write a program to input number of lines and print the Floyd's Triangle using while loop.
                     1
                     2 3
                     4 5 6
                     7 8 9 10

                    Ans.  import java.util.*;
                         class while_floyd
                         {
                             public static void main()
                             {
                                 Scanner sc= new Scanner(System.in);
                                 int i,j,n,k=1;
                                 System.out.print("Enter number of lines : ");
                                 n=sc.nextInt();
                                 i=1;
                                 while(i<=n)
                                 {
                                     j=1;
                                     while(j<=i)
                                     {
                                         System.out.print(k+" ");
                                         k++;
                                         j++;
                                     }
                                     i++;
                                     System.out.println();
                                 }
                             }
                         }







                   320    Touchpad Computer Applications-IX
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