This section of our 1000+ Java MCQs focuses on assignment operators and operator precedence in Java Programming Language. 1. Which of these have highest precedence? a) () b) ++ c) * d) >> 2. What should be expression1 evaluate to in using ternary operator as in this line? expression1 ? expression2 : expression3 a) Integer … Read more
This section of our 1000+ Java MCQs focuses on relational operators and boolean logic operators of Java Programming Language. 1. What is the output of relational operators? a) Integer b) Boolean c) Characters d) Double 2. Which of these is returned by “greater than”, “less than” and “equal to” operators? a) Integers b) Floating – … Read more
This section of our 1000+ Java MCQs focuses on Bitwise operators of Java Programming Language. 1. Which of these is not a bitwise operator? a) & b) &= c) |= d) <= 2. Which operator is used to invert all the digits in a binary representation of a number? a) ~ b) <<< c) >>> … Read more
This section of our 1000+ Java MCQs focuses on Arithmetic Operators of Java Programming Language. 1. Which of the following can be operands of arithmetic operators? a) Numeric b) Boolean c) Characters d) Both Numeric & Characters 2. Modulus operator, %, can be applied to which of these? a) Integers b) Floating – point numbers … Read more
This set of Tricky Java Questions and Answers focuses on “Data Structures-Arrays”. 1. What is the type of variable ‘b’ and ‘d’ in the following Java snippet? int a[], b; int []c, d; a) ‘b’ and ‘d’ are int b) ‘b’ and ‘d’ are arrays of type int c) ‘b’ is int variable; ‘d’ is … Read more
This section of our 1000+ Java MCQs focuses on “Array” 1. Which of these operators is used to allocate memory to array variable in Java? a) malloc b) alloc c) new d) new malloc 2. Which of these is an incorrect array declaration? a) int arr[] = new int[5] b) int [] arr = new … Read more
This section of our 1000+ Java MCQs focuses on Type conversions, promotions and castings of Java Programming Language. 1. 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 … Read more
This section of our 1000+ Java MCQs focuses on literals & variables of Java Programming Language. 1. Which of these is long data type literal? a) 0x99fffL b) ABCDEFG c) 0x99fffa d) 99671246 2. Which of these can be returned by the operator &? a) Integer b) Boolean c) Character d) Integer or Boolean 3. … Read more
This set of Java Multiple Choice Questions & Answers (MCQs) focuses on “Data Type – Date and TimeZone”. 1. How to format date from one form to another? a) SimpleDateFormat b) DateFormat c) SimpleFormat d) DateConverter 2. How to convert Date object to String? a) SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-mm-dd”); sdf.parse(new Date()); b) SimpleDateFormat sdf … Read more
This set of Tough Java Questions and Answers focuses on “Data Type-BigDecimal”. 1. Which of the following is the advantage of BigDecimal over double? a) Syntax b) Memory usage c) Garbage creation d) Precision 2. Which of the below data type doesn’t support overloaded methods for +,-,* and /? a) int b) float c) double … Read more
