What are the difference(s) between C/C++ arrays and Java arrays?.
What are the differences(s) between C/C++ and Java’s dynamic memory allocation?
What is the difference between pointer and reference in C++?
What is difference between arrays of C/C++ and Java:
In Java Array is an object and we can find the length of the array using member array.length() while in C++ it works differently as it its not an object
In Java array is dynamic, as we add more elements the size varies but in c++ the size is to be predefined.
Java can catch out of bounds exception , while in C++ we can not and the program may behave randomly if out of predefined bounds is called/
------------------------------------------------------------------
Difference between C++ and Java dynamic memory allocation
In C++ dynamic memory allocation is something programmer asks for in specific while writing the program using malloc and calloc and frees the space whenever required.Which can be used for temporary variables, when you are not aware of how much memory is required in prior.
While in Java all objects are dynamically created. It just creates a reference intially and allocates memory only after an object is initialized unlike in C++ where we have to decide upon static and dynamic memory while writing code.
--------------------------------------------------------------------------
difference between pointer and reference in C++:
If we declare a variable it needs some memory allocation
memory cells -each one byte in size and have a unique address
So any variable declared will have a unique address
for example we declared a variable as
int x=25 and lets assume it is stores in memory of address - x
int &a=x creates 'a' as reference of x, we are not creating a new memory here, but referencing a to the address of x.
We cannot change the reference while runtime
Pointer:
for the same example int x=25; &x gives the address of x
any variable pointing to its address is called pointer
p=&x
o find the value using p we de reference the p using *
*p gives value present in the address.
we can always change p to refer to a different address .
What are the difference(s) between C/C++ arrays and Java arrays?. What are the differences(s) between C/C++...
c++ What are the differences and similarities between Binary Search Tree and Binary Searches of arrays.
IN C++ ADD COMMENTS AS MUCH AS POSSIBLE Exercise 1: Duplicate the Arrays Suppose you are developing a program that works with arrays of integers, and you find that you frequently need to duplicate the arrays. Rather than rewriting the array-duplicating code each time you need it, you decide to write a function that accepts an array and its size as arguments. Creates a new array that is a copy of the argument array, and returns a pointer to the...
ARM architecture: a) What is the primary difference between the von Neumann architecture and the architecture employed by the ARM Cortex M? b) What is the primary difference between a load/store architecture and a register/memory architecture? c) Describe some of the differences between microcontrollers in the same “family”.
1. What are the differences between doGet and doPost in java servlet 2. What does response and request mean in a Java servlet ? 3. what does out.println do in a Java servlet ? 4. Where does Java compiler get the binaries for the following ? import javax.servlet.*; import javax.servlet.http.*;
please do it ASAP the program should be written in C language 1. Dynamic Arrays in C-Programming Just like we can allocate run-time memory in C++ by using new and delete, we can allocate run-time memory in C Programming as well. For this, we use malloc() and/or calloc() functions to allocate memory. For example,
Explain addresses in C++ and pointers. What is the difference between the pointer (*) symbol, the deference operator (&) ? Include 30 words
In java what are the main differences between the data structures deques, queues, and priority queues?
Explain the following object-oriented(OO) concepts with the aid of code examples (either C++ or Java): Inheritance Over-riding . Over-loading Describe any differences between C++ and Java in how these OO concepts are implemented? 3(c) 17 Marks] Describe C++ namespaces using a code example. Describe Java packages, again using a code example. How do C++ namespaces compare to Java packages? 3(d) [5 Marks] What are inline methods in C++/Java? Explain the terms accessor and mutator. Explain the following object-oriented(OO) concepts with...
JAVA QUESTIONS: 1. What are the differences between constructors and other methods? 2. What is a NullPointerException and how should it be handled? 3. What must a class do to implement an interface and what must a class do to extend another class?
1.Explain how arrays allow you to easily work with multiple values. 2 Explain how for loops can be used to work effectively with elements in an array. 3 Provide an example of using a for loop without an array. 4 What is the main difference between standard array and a dynamic array? 5 How are elements added to a vector in C++? 6 How can you remove an element from a vector in C++? 7 Why pass a vector by...