Related InterviewSolutions

• Which of these is an incorrect Statement?(a) It is necessary to use new operator to initialize an array(b) Array can be initialized using comma separated expressions surrounded by curly braces(c) Array can be initialized when they are declared(d) None of the mentionedI got this question in an interview.My question is based upon Arrays topic in section Data Types, Variables and Arrays of Java
• Which of these is an incorrect array declaration?(a) int arr[] = new int[5](b) int [] arr = new int[5](c) int arr[] = new int[5](d) int arr[] = int [5] newThe question was asked during an interview.My doubt is from Arrays topic in chapter Data Types, Variables and Arrays of Java
• If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?(a) long(b) int(c) double(d) floatI got this question in unit test.The question is from Type Conversions, Promotions and Castings topic in chapter Data Types, Variables and Arrays of Java
• Which of these operators is used to allocate memory to array variable in Java?(a) malloc(b) alloc(c) new(d) new mallocThis question was addressed to me at a job interview.The above asked question is from Arrays topic in section Data Types, Variables and Arrays of Java
• Which of these is necessary condition for automatic type conversion in Java?(a) The destination type is smaller than source type(b) The destination type is larger than source type(c) The destination type can be larger or smaller than source type(d) None of the mentionedThe question was posed to me in an interview.Question is taken from Type Conversions, Promotions and Castings in division Data Types, Variables and Arrays of Java
• Which of these can be returned by the operator &?(a) Integer(b) Boolean(c) Character(d) Integer or BooleanI got this question in exam.My question comes from Literals & Variables topic in division Data Types, Variables and Arrays of Java
• How to get difference between two dates?(a) long diffInMilli = java.time.Duration.between(dateTime1, dateTime2).toMillis();(b) long diffInMilli = java.time.difference(dateTime1, dateTime2).toMillis();(c) Date diffInMilli = java.time.Duration.between(dateTime1, dateTime2).toMillis();(d) Time diffInMilli = java.time.Duration.between(dateTime1, dateTime2).toMillis();I got this question in quiz.This key question is from Data Type-Date, TimeZone topic in chapter Data Types, Variables and Arrays of Java
• What does LocalTime represent?(a) Date without time(b) Time without Date(c) Date and Time(d) Date and Time with timezoneI have been asked this question at a job interview.This is a very interesting question from Data Type-Date, TimeZone topic in chapter Data Types, Variables and Arrays of Java
• Which of these is long data type literal?(a) 0x99fffL(b) ABCDEFG(c) 0x99fffa(d) 99671246I have been asked this question in a national level competition.My enquiry is from Literals & Variables topic in section Data Types, Variables and Arrays of Java
• How is Date stored in database?(a) java.sql.Date(b) java.util.Date(c) java.sql.DateTime(d) java.util.DateTimeThis question was addressed to me at a job interview.My question is based upon Data Type-Date, TimeZone in division Data Types, Variables and Arrays of Java