a- import b- extends 1) Which keyword is used for accessing the features of a package? с- еxport d- include e- None of the above a- x/100%10 >= 0 & & x/100%10 < 10 2) Which of the following Boolean expressions is satisfied if the value of the integer variable x was positive and b- x >= 0 && x < 1000 smaller than 1000? c- x/1000 == 0 d- All of the above e- None of the above a- one word b- a line of text 3) The Scanner class .nextLine() method will read: c- a character d- an integer e- None of the above double my_num = 100.0; b- int $my_num = '10000'; c- int myNum = 1000; d- int mynum1 = 100000; a- 4) Which one is NOT a valid variable declaration? a- if(x>0){ if(y>0) S.O.P("A");} b- if(x>0 || y>0) 5) x and y are two integers. Which of the following is not equivalent to the others? S.O.P("A"); c- if(x>0 && y>0) S.O.P("A"); d- if(!(x<=0 || y<=0)) S.O.P("A"); a- char() b- Charat() c- charat() d- charAt() 6) Which of these method of String class is used to obtain character at index 2? e- None of the above

a- import b- extends 1) Which keyword is used for accessing the features of a package? с- еxport d- include e- None of the above a- x/100%10 >= 0 & & x/100%10 < 10 2) Which of the following Boolean expressions is satisfied if the value of the integer variable x was positive and b- x >= 0 && x < 1000 smaller than 1000? c- x/1000 == 0 d- All of the above e- None of the above a- one word b- a line of text 3) The Scanner class .nextLine() method will read: c- a character d- an integer e- None of the above double my_num = 100.0; b- int $my_num = '10000'; c- int myNum = 1000; d- int mynum1 = 100000; a- 4) Which one is NOT a valid variable declaration? a- if(x>0){ if(y>0) S.O.P("A");} b- if(x>0 || y>0) 5) x and y are two integers. Which of the following is not equivalent to the others? S.O.P("A"); c- if(x>0 && y>0) S.O.P("A"); d- if(!(x<=0 || y<=0)) S.O.P("A"); a- char() b- Charat() c- charat() d- charAt() 6) Which of these method of String class is used to obtain character at index 2? e- None of the above

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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