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Previous Years' Questions



                                                              SECTION A

                    1.  Write the output:                                                                           [2017]
                       char ch = 'F';
                       int m = ch;
                       m = m + 5;
                       System.out.println(m + " " + ch);
                   Ans.  75 F
                    2.  Write the output for the following:                                                         [2017]
                       String s = "Today is Test";
                       System.out.println(s.indexOf('T'));
                       System.out.println(s.substring(0, 7) + " " + "Holiday");
                   Ans.  0
                       Today i Holiday
                    3.  State the output when the following program segment is executed:                            [2015]
                       String a = "Smartphone", b = "Graphic Art";
                       String h = a.substring(2, 5);
                        String k = b.substring(8).toUpperCase();
                       System.out.println(h);
                       System.out.println(k.equalsIgnoreCase(h));
                   Ans.  art
                       true
                    4.  Write the output of the following program code:                                             [2015]
                       char ch;
                       int x = 97;
                       do{
                           ch = (char)x;
                           System.out.print(ch + " ");
                           if(x % 10 == 0)
                               break;
                           ++x;
                       }while(x <= 100);
                   Ans.  a b c d
                    5.  State the output of the following program segment:
                       String str1 = "great"; String str2 = "minds";
                       System.out.println(str1.substring(0, 2).concat(str2.substring(1)));
                       System.out.println(("WH" + (str1.substring(2).toUpperCase())));                              [2014]
                   Ans.  grinds
                       WHEAT
                    6.  What is the data type returned by the library functions:
                        (i)  compareTo()                              (ii)  equals()                                [2014]
                   Ans.  (i)  int                                     (ii)  boolean
                    7.  State the value of characteristic and mantissa when the following code is executed:
                       String s = "4.3756";
                       int n = s.indexOf('.');
                       int characteristic = Integer.parseInt(s.substring(0, n));
                       int mantissa = Integer.valueOf(s.substring(n + 1));
                   Ans.  characteristic = 4                 mantissa = 3756







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