stringbuilder sample

The StringBuilder does not provide a clear or empty method.There are 3 ways to clear:1) Reborn into one, the old by the system itself voluntarily recycled2) Use Delete3) Use SetLengthCycle three methods 10 million times, code:1.public class SBBM {2.3. Static String A;4. Static long time;5. public static void Main (string[] args) throws Exception {6.7. StringBuilder sb = new

The StringBuilder does not provide a clear or empty method.There are 3 ways to clear:1) Reborn into one, the old by the system itself voluntarily recycled2) Use Delete3) Use SetLengthCycle three methods 10 million times, code:1.public class SBBM {2.3. Static String A;4. Static long time;5. public static void Main (string[] args) throws Exception {6.7. StringBuilder sb = new

The StringBuilder does not provide a clear or empty method.There are 3 ways to clear:1) Reborn into one, the old by the system itself voluntarily recycled2) Use Delete3) Use SetLengthCycle three methods 10 million times, code:1.public class SBBM {2.3. Static String A;4. Static long time;5. public static void Main (string[] args) throws Exception {6.7. StringBuilder sb = new

This example describes the. NET in StringBuilder usage. Share to everyone for your reference. The specific analysis is as follows: Why to use StringBuilder Why use StringBuilder to start with the attributes of a string object.String objects are concatenation, because the string is not denatured, the string object will be spliced each time, will copy a copy out

Fully explain the relationship between stringbuilder, stringbuffer, and string1. string classThe string value is immutable, which leads to a new String object generated every time a string operation is performed, which is not only inefficient, but also a large waste of limited memory space.StringA = "A"; // assume a points to address 0x0001A= "B"; // After the value is re-assigned, a points to address 0x0002, but the "A" stored in address 0x0001 still

String is used to represent text. StringBuilder indicates an object similar to a String whose values are variable character sequences. It is variable because it is created after it is appended, removed, replaced, or inserted, you can also modify it. At the same time, it is more convenient to use StringBuilder when operating a string with a relatively large length. The following is an example of the differen

A small test, According to beautyispower's original Code : Using System; Using System. text; Namespace Test { Public Class Testapp { Public Static Void Main ( String [] ARGs) { Int Inttimeused = 0 ; Int Intcount = 0 ; Int Intmaxcount = 50000 ; String Strtest = String . Empty;Stringbuilder sbtest = New Stringbuilder (intmaxcount );Console. writeline (

In many operations with the same string, using the stringbuilder class is more efficient than using the string object. The string data type represents an unchangeable string. The only way to insert, delete, or modify a string is to create a new string, this will lead to configuration operations on the memory and anti-configuration operations on the memory, which will increase the CLR management memory and memory recovery. This situation is more obviou

Stringbuilder sb = new stringbuilder (); SB. appendformat ("{0} {1}", "Jeffrey", "richer"). Replace ("","-"); String S = sb. tostring (). toupper (); SB. Length = 0; SB. append (s). insert (8, "Marc -"); S = sb. tostring (); Console. writeline (s ); To dynamically create a string, use stringbuilder because the string class is a constant string. T

1. Comparison of speed of execution: StringBuilder > stringbuffer 2. StringBuffer and StringBuilder, they are string variables, are objects that can be changed, and whenever we use them to manipulate strings,Actually operates on an object and does not create as many objects as a string, so the speed is fast.3. StringBuilder: Thread non-secure　 StringBuffer

The basic concept:The view API discovers that the string, StringBuffer, StringBuilder all implement the Charsequence interface, which is implemented internally with a char array, although they are all related to strings, but have different processing mechanisms.StringString: Is an immutable amount, that is, after creation, you cannot modify the string class to be the final class, and you cannot inherit it. The best way to reuse a string type is to com

It is known that frequent concatenation of strings is the use of StringBuilder. The Append method is much more efficient than using the string+= method, but sometimes you need to empty the StringBuilder without knowing how to empty it, because it does not have a clear or empty method. What's the way? Search the Internet for about three ways.1. RemoveCases:New StringBuil