Variable declaration - Samenvattingen, Notities en Examens

Reference Types Refers to an object, doesn't hold the value of the object they refer to, and stores the memory address where the object is located. Can be assigned null. Object Instance of a class Primitive Types Boolean, int, byte, double, float, long, don't have methods declared to them. Literal Fixed value that doesn't need further calculations in order to be assigned to a variable Local Variables Defined within a method, must be initialized before use. In ...

What is an integer? - Answer A positive or negative whole number What is a Real or Float number? - Answer A positive or negative number that can have a fractional part. What is a Boolean? - Answer True or False What is a character? - Answer A single letter, number or symbol What is a string? - Answer A group of characters What is Date/Time? - Answer A way of storing Date/Time What is a pointer? - Answer A way of storing a memory address. What is a record? - Ans...

CSE 110- Exam #2 (Ch. 4, 5, 8) Questions With 100% Verified Answers Which process helps with identifying the methods that make up a computer program? a) Black boxing b) Stepwise refinement c) Parameter passing d) Debugging - answerStepwise refinement The term "Black Box" is used with methods because a) Only the implementation matters; the specification is not important. b) Only the specification matters; the implementation is not important. c) Only the arguments matter; the return va...

AQA A-level Computer science Paper 1 Test || All Questions & Answers (expert Rated A+) AQA A-level Computer science Paper 1 Test || All Questions & Answers (expert Rated A+) What is an integer? - ANSWER - A positive or negative whole number What is a Real or Float number? - ANSWER - A positive or negative number that can have a fractional part. What is a Boolean? - ANSWER - True or False What is a character? - ANSWER - A single letter, number or symbol What is a string? - ANSWER ...

What is printed by the following code? int main () { int array[5] = {10,30,50,70,90}; int *p = array; cout << *(p+1) + *(&*p) + 1; return 0; } - ANSWER - 41 What is the value in the variable Exam::total that is printed when this program is executed? #include<iostream> using namespace std; class Exam { public: static int total; Exam() { total++; } }; int Exam::total = 0; int main(){ Exam a, b, c; Exam *d, *e, *f = new Exam; cout << Exam::...

A variable identifier can start with a number. A. True B. False ANS: - B Select all keywords that are reserved by C#: A. as B. get C. new D. set E. null F. var G. try H. let ANS: - A,C,E,G What is the default value of a bool value variable? A. True B. False C. null D. nil ANS: - B C# is a case-sensitive language. A. True B. False ANS: - A What is the size of long in C#? A. 16-bit B. 32-bit C. 64-bit D. Depending on CPUs ANS: - C What ...

<!DOCTYPE> - Correct answer-The first tag in an HTML document; it informs the interpreter (usually a browser) which version of HTML the web page is written in. application programming interface (API) - Correct answer-A source code specification that enables components of an application or program to work together to produce the desired functionality. Canvas - Correct answer-An HTML5 API used for rendering visual images on the fly by providing scripts with a bitmap canvas. Cascading ...

2*6*4 bytes correct answers int multi_array[2][6] = {{10000, 2, 3, 9, 10, 10}, {7, 8, 9, 9, 1999, 0}}; int size = sizeof(multi_array); What is the value of size? ptr is an integer pointer that is equal to the value at address j. correct answers Int* ptr = &j; Int x is created P is a pointer to the address of x X is set to 100 P is set to the address value minus 1 Print value of x which was changed by P which is 99. correct answers int x, *p = &x; x = 100; *p = *p - 1; printf(...

What is an unsigned type? - Answer a keyword to indicate only positive integers including zero If you set an unsigned type to a negative value, what happens? - Answer causes the value to underflow and wrap around to the max value of that data type When would you want to use an unsigned type? - Answer when you know a variable's number will always be positive What default values are assigned to your variables in C++? For example: int x; // what value does this have? - Answer no ...

Java Programming; Questions and Answers 100% Pass Assign a Value CORRECT ANSWER-to set the data of a variable (involves the equal sign). Class CORRECT ANSWER-Describes a particular kind of object. It can contain related methods and variables. Double CORRECT ANSWER-A type of variable (or value) that can contain fractions as well as integers. Declaration CORRECT ANSWER-A statement that creates a variable, method, or class identifier and its associated attributes but doesn't necessaril...