PHP defines the array constant (array constant) method, array constant. PHP defines the array constant (array constant) method. in PHP, we cannot use const to directly define the array constant, but const can define the string constant, combined
Give yourself a wave of self-dismissal ~Introduce pointer constants and constant pointers firstconst int *p; This is a pointer constant int const* p; This is a constant pointer.Const is a constant modifier, and the modifier is a constant, and
The array name is a pointer constant, which is derived from the equivalence of the result of the array name to the pointer in the expression evaluation. For example, the following code:int a[10], *p = A, *q;Q = a + 1;Q = p + 1;In effect, a + 1 and P
Introduction?? This article will introduce the Chang and packing unpacking mechanism, the reason is that the two together introduced, is because many articles on the internet when it comes to Chang, the wrapper class cache mechanism, Java constant
Introduction?? This article will introduce the Chang and packing unpacking mechanism, the reason is that the two together introduced, is because many articles on the internet when it comes to Chang, the wrapper class cache mechanism, Java constant
NO1.Where is Chang in the class file?
My previous article "schematic diagram of Java Virtual machine" 1, class file basic organizational structure has mentioned the class file structure, in the class file, after the magic number, the
For Web programming, the most important thing is to access and read and write data. There may be many ways to store them, such as strings, arrays, files, and so on. arrays, which can be said to be a more important way of using PHP data. PHP's Array
PHP defines the array constant (array constant) method, array constant
In PHP, we cannot use const to directly define array constants, but const can define string constants and use the eval () function to execute string constants. Therefore, we can
Java memory allocation:
1. Register: we cannot control it in the program2. STACK: stores basic data and object references, but the object itself is not stored in the stack, but stored in the heap.3. Heap: store data generated with new4. static
Reprinted from http://my.oschina.net/xianggao/blog/84179
Author: Old demon
Java constant pool technology
The constant pool technology in Java is used to create some objects conveniently and quickly. when an object is required, you can obtain one
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