Page 186 - computer science (868) class 11
P. 186

Ans.  if(m==0){
                    x= x+2;
                    System.out.println("X=" +x);
                    }
                    else if(m==1){
                    x= x+4;
                    System.out.println("X=" +x);
                    }
                    if(m==2){
                    x= x+6;
                    System.out.println("X=" +x);
                    }
                 11.  Convert the following from for to while loop and write the output:
                    int a,b;
                    for(a = 5,b = 2; a>b ; a-- , b++)
                    {
                      System.out.println(a+b);
                    }
                Ans.  int a=5,b=2;
                    while(a>b)
                    {
                        System.out.println(a+b);
                        a--;
                        b++;
                    }
                     Output :
                     7
                     7
                 12.  Find the error:
                    int i=5;
                    while(i>=15)
                    {
                        System.out.println(i)
                        i=i-2;
                    }
                Ans.  The loop will not execute since starting value of i is less than the condition.


                   Unsolved Questions


              A.  Tick ( ) the correct option:
                  1.  Which of the following methods finds the highest value of x and y in Java?
                    a.  Math.max(x,y)                               b.  Math.high(x,y)
                    c.  Max.Math(x,y)                               d.  High.Math(x,y)
                  2.  Which of the following data types cannot be used in a switch statement?
                    a.  boolean                                     b.  int
                    c.  char                                        d.  string
                  3.  The code given below is an example of:
                    for(i=10; i>=1; i++)
                    {
                      System.out.println(i);
                    }
                    a.  Delay loop                                  b.  Empty loop
                    c.  Infinite loop                               d.  None of these


                184184  Touchpad Computer Science-XI
   181   182   183   184   185   186   187   188   189   190   191