string reference

1 String = different from newAssigning a value with "=" does not necessarily create a new string each time, but instead finds the string from the string instance pool . When you assign a value using "new", a new string is created each time.2 string

Although PHP is powerful, it does not have any disadvantages. Like other languages, it also needs to constantly update and modify the compiled code in actual application writing until it is satisfied. Next we will share with you some tips on

1. We know that string is one of the most commonly used types in programming. It is used as a primitive type in C. In terms of inheritance, string directly inherits from the object. It is a reference type and is always allocated to the managed heap.

[Article Title]: RSACrackMe512 analysis process and compilation of registration machine source code[Author]: coolstar14[Tools]: IDA, BigInterCalc, RDLP[Software name]: RSACrackMe512[Software size]: 40 KB[]: Http://bbs.pediy.com/attachment.php?

When I installed the typing experts, the music immediately sounded, and it was just a few years ago. Okay,Click "help"> "software registration"> enter "123465789" at the entry of the registration code (why do you enter 9? -- Read Lao Luo's article :)

First, check that the program is compiled in easy language. The confirmation method is as follows:1. If the PEID is found to be VC ++ 6.0 and the entry OEP is 38312. Search for two databases with string E (one of which is the krnln database)3. There

Text/figure HokkienMany of my friends take it for granted that brute-force cracking is very simple. In fact, it is not that easy to achieve simple and elegant blasting. So today we will discuss how to optimize the brute force cracking.The flag

[Article Title]: hardware tuning program brute-force written in easy language[Author]: v Zi[Author mailbox]: vxf155@sina.com[Software name]: Magic baby plug-in[Software size]: 1.49 MB[Shelling method]: None[Protection method]: Depends on the machine[

First, the OllyDbg loads the program.0041865A> 6A 74 push 0x740041865C 68 58C24E00 push 004EC25800418661 E8 F6010000 call 0041885C00418666 33DB xor ebx, ebx00418668 895D E0 mov dword ptr [ebp-0x20], ebx0041866B 53 push ebxClean, qiqiang.Open the

API: (Appilcation programming Interface)Is something that has been written, can be used directly to use the function, in Java in the form of a class encapsulation;The role of the package: classify all class libraries as if a school is divided into

Java Fundamentals 05: Object-orientedOne, arraymemory management for arrays : A contiguous space to store elements. Int [] arr = new int[];Create an array of type int,arr is just a variable, just a reference address to the array, local variables

I. Arrays 1. Common Errors in arrays:1.NullPointerExcepation: null pointer exceptionCause: The referenced type variable does not point to any object, in which case it also accesses its properties and methods.An object will not be released

Features of the 1.String Feature One: immutability String S=new string ("Yangyun") S=s.touppercase (); The space occupied by the s,s here is not the same (the address is not the same), if the toUpperCase function does

Fourth day notes1. ArraysConcept: A container for storing the same data type.1.1 The definition of an array in Java:Data Type [] Array name = new data type [length]1.2 the length of the array can be specified or not specifiedint[] arr = new Int[0];1.

Question 1: What have I declared! String S = "Hello world! "; Many people have done such a thing, but what have we declared? The answer is usually a string with the content "Hello World !". Fuzzy answers are usually the root cause of unclear

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

First, let me introduce the background of using the cache by myself, so that readers can better understand what I will talk about below.I am mainly a cache implementer, not a user. To provide cache support for some ORM (such as JPA implementation),

The software I want to crack:   2. Shelling: aspackdie.exe. In the dialog box that appears, select the network entry Terminator: formghost.exe. 3. As shown in figure 4, click confirm to complete shelling. Generate an unpacked.exefile in the

Preface In using memory analyzer tool (MAT) to analyze memory leaks (I), I introduced the causes and consequences of memory leaks. This article describes how mat analyzes the root cause of Leakage Based on heap dump. Because the test examples may be

Both stack and Heep are part of the memory.The stack space is small and the speed is relatively fast. It is used to reference objects.Heep is large. Generally, all created objects are stored here. STACK: an advanced data structure. It is usually