How can I dynamically add items to a Java array?
Look at java.util.LinkedList or java.util.ArrayList List<Integer> x = new ArrayList<Integer>(); x.add(1); x.add(2);
dynamic-arrays
Correctly allocating multi-dimensional arrays
In order to answer the question, we should first clear up some concepts. What is an array and how can it be used? And what is the code in the question, if not an array? What is an array? The formal definition of an array is found in the C standard, ISO 9899:2011 6.2.5/20 Types. … Read more
What is the ideal growth rate for a dynamically allocated array?
I remember reading many years ago why 1.5 is preferred over two, at least as applied to C++ (this probably doesn’t apply to managed languages, where the runtime system can relocate objects at will). The reasoning is this: Say you start with a 16-byte allocation. When you need more, you allocate 32 bytes, then free … Read more
NumPy style arrays for C++? [closed]
Here are several free software that may suit your needs. The GNU Scientific Library is a GPL software written in C. Thus, it has a C-like allocation and way of programming (pointers, etc.). With the GSLwrap, you can have a C++ way of programming, while still using the GSL. GSL has a BLAS implementation, but … Read more
How do I get an empty list of any size in Python?
If by “array” you actually mean a Python list, you can use a = [0] * 10 or a = [None] * 10
C dynamically growing array
I can use pointers, but I am a bit afraid of using them. If you need a dynamic array, you can’t escape pointers. Why are you afraid though? They won’t bite (as long as you’re careful, that is). There’s no built-in dynamic array in C, you’ll just have to write one yourself. In C++, you … Read more