new-operator Archives

C++, Programming

IT Nursery

How to initialise memory with new operator in C++?

I’m just beginning to get into C++ and I want to pick up some good habits. If I have just allocated an array ...

June 2, 2022
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Java, Programming

IT Nursery

Java FileOutputStream Create File if not exists

Is there a way to use FileOutputStream in a way that if a file (String filename) does not exist, then it will create ...

May 28, 2022
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Difference between new and override

Wondering what the difference is between the following: Case 1: Base Class public void DoIt(); Case 1: Inherited class public new void DoIt(); ...

May 22, 2022
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Is “delete this” allowed in C++?

Is it allowed to delete this; if the delete-statement is the last statement that will be executed on that instance of the class? ...

May 22, 2022
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Can we omit parentheses when creating an object using the “new” operator?

I have seen objects being created this way: const obj = new Foo; But I thought that the parentheses are not optional when ...

May 20, 2022
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C++ new int[0] — will it allocate memory?

A simple test app: cout << new int[0] << endl; outputs: 0x876c0b8 So it looks like it works. What does the standard say ...

May 20, 2022
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How to open in default browser in C#

I am designing a small C# application and there is a web browser in it. I currently have all of my defaults on ...

May 14, 2022
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When should I use the new keyword in C++?

I’ve been using C++ for a short while, and I’ve been wondering about the new keyword. Simply, should I be using it, or ...

May 13, 2022
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Using “Object.create” instead of “new”

Javascript 1.9.3 / ECMAScript 5 introduces Object.create, which Douglas Crockford amongst others has been advocating for a long time. How do I replace ...

May 9, 2022
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Create an empty object in JavaScript with {} or new Object()?

There are two different ways to create an empty object in JavaScript: var objectA = {} var objectB = new Object() Is there ...

May 8, 2022
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