Page 215 - Computer science 868 Class 12
P. 215

Ans.  int i, j;
                       for(i=1,j=1; i<=5; i++,j++)
                       {
                           System.out.println(i+j);
                       }
                    2.  Convert the following into if else.
                       int discount=(price>=10000)?(price-(price*5.0/100.0)):(price-100);
                   Ans.  int discount;
                       if(price>=10000)
                       discount=(price-(price*5.0/100.0));
                       else
                       discount=(price-100);
                    3.  How many times the following loop will execute?
                       int i = 1;
                           while (i < 10)
                               if (i++ % 2 == 0)
                                   System.out.println(i);
                   Ans.  4 times
                    4.  Give the output of the following program code.
                       int i=-12;
                       do
                       {
                           System.out.println(i);
                           i=i+2;
                       }while(i<0);
                   Ans.  Output
                        -12
                        -10
                        -8
                        -6
                        -4
                        -2
                    5.  What is being calculated in the following program?
                       int num = sc.nextInt();
                       int s=0;
                       for(;num>0;num/=10)
                       {
                           s=s+num%10;
                       }
                       System.out.println("Result : "+s);
                   Ans.  Sum of the digits of the number in the variable “num”.
                    6.  Convert the following do while loop into a while loop.
                       int i=20;
                       do
                       {
                       System.out.println(i*2);
                       i=i-2;



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