💡 มารู้จัก Class สำหรับจัดการ String เจ๋ง ๆ ในภาษา Java กันเถอะ !! นั่นคือเจ้า StringBuilder นั่นเองจ้าาา !!
.
มีรายละเอียดยังไงบ้างงง ไปดูกันนนน !!~~
.
✨ StringBuilder เป็น Class สำหรับจัดการ String เพื่อให้เราสามารถแก้ไข แทรก หรือต่อ String ได้อย่างมีประสิทธิภาพนั่นเอง
.
🔸 Syntax
public final class StringBuilder
extends Object
implements Serializable, CharSequence
.
🖥️ ตัวอย่างฟังก์ชัน
StringBuilder () - สร้าง StringBuilder มีความจุเริ่มต้นคือ 16 อักขระ
StringBuilder(int capacity) - สร้าง StringBuilder ตามความยาวที่ระบุ
StringBuilder(CharSequence seq) - สร้าง Object StringBuilder ด้วยลำดับอักขระที่ระบุ
StringBuilder(String str) - สร้าง Object StringBuilder เริ่มต้นด้วย String
.
📑 ตัวอย่างการใช้งาน
import java.util.*;
import java.util.concurrent.LinkedBlockingQueue;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
//StringBuilder()
StringBuilder str
= new StringBuilder();
str.append("BorntoDev");
System.out.println("String = "
+ str.toString());
//StringBuilder(CharSequence)
StringBuilder str1
= new StringBuilder("BorntoDevBorntoDevBorntoDev");
System.out.println("String1 = "
+ str1.toString());
//StringBuilder(capacity)
StringBuilder str2
= new StringBuilder(10);
System.out.println("String2 capacity = "
+ str2.capacity());
//StringBuilder(String)
StringBuilder str3
= new StringBuilder(str1.toString());
System.out.println("String3 = "
+ str3.toString());
}
}
.
🔹 Output
String = BorntoDev
String1 = BorntoDevBorntoDevBorntoDev
String2 capacity = 10
String3 = BorntoDevBorntoDevBorntoDev
.
หวังว่าจะเป็นประโยชน์กับเพื่อน ๆ นะคร้าบบบบบ 🥰
.
borntoDev - 🦖 สร้างการเรียนรู้ที่ดีสำหรับสายไอทีในทุกวัน
同時也有9部Youtube影片,追蹤數超過59萬的網紅NotebookSPEC,也在其Youtube影片中提到,แกะกล่องจอเทพราคาเกือบครึ่งแสน จอโค้ง 49 นิ้ว ออปชั่นโคตรเยอะ ของโคตรแน่น ฟีเจอร์เด็ดขนาดไหน มีออปชั่นอะไรบ้างในกล่อง พร้อมพรีวิวเบื่องต้นกับจอเทพ #SA...
static class 在 91 敏捷開發之路 Facebook 的精選貼文
【Classic TDD by Example】C# 版無限期、不限次 影音培訓內容正式推出,開放報名。
完成介紹,請參考:https://tdd.best/courses/classic-tdd-by-example-video-training/
【#你可以學會什麼】
➀ 怎麼做需求分析、測試案例分析、backlog items 分析、TDD 的測試案例設計、單元測試、TDD 的小步快跑、持續重構、假實作加上三角定位法。
➁ code smell 的辨識,例如 duplication, temp variable, primitive obsession, feature envy 等等。
➂ 會用到的重構功能與技能,大概整個 IDE 的重構功能都涵蓋到了,包含:
- rename, introduce variable/parameter/field
- extract method/class/interface/super class
- inline variable/field/parameter/method
- move/make method non-static (move class, folder, namespace)
- push member down
- replace switch/nested if logic
- split/merge/join variable
- change signature
- 如何移掉 out 參數的設計
➃ 設計原則:SOLID, 關注點分離, Simple Design
➄ 實戰 Refactoring to Patterns: strategy, chain of responsibility, template method…
【#你會得到的服務與內容】
➀ 你會拿到兩個影片,包含需求面的說明、解析、測試案例分析設計、待辦清單的設計。長度加起來為12小時40分鐘。
➁ 有一份線上講義,匯出成 PDF 共計 159 頁。(作業為2頁)
➂ 有一份 mind map, 跟著培訓做,會有 338 個 elements/nodes。
➃ GitHub上一份 181個 commits 的參考。
➄ 會有一個 slack workspace 供大家在上面發問、討論交流,以及方便我補充相關內容。
➅ 額外提供1hr online 1-1 coaching,企業報價為10630(不信的,有好幾張不同時間的發票金額與天數備註為證明,歡迎來跟我打賭)
➆ 如果因為這門培訓的練習,讓你打算訂閱 JetBrains IDE, 可獲得個人首年訂閱8折的 coupon, 舉例來說,如果是只有 Rider, 就可省27.8美元,如果是全家餐(全系列 10個 IDE 產品),則是節省 99.8 美元。
【#適合哪些朋友】
➀ 因為時空因素(例如人在國外或外地、因為疫情、因為週末時間得陪伴家人,只有深夜才能擁有自己時間的朋友),無法參加我的培訓,但又很想突破自己能力瓶頸的朋友,至少我很肯定你可以從中先獲得工作上有幫助的內容。
➁ 不想等那麼久才能上到實體課,怎麼報名都只能排在等待清單,要等到啥時才可以變強啊啊啊啊啊… 的朋友。畢竟我 2021 年的所有課,在一月份就已經全數額滿了。
➂ 喜歡反覆觀看影片學習、動手練習,能從反覆複習的過程中,獲得最大學習效果,獲得不同想法刺激的學習模式的朋友,這一次的影片絕對可以滿足你的學習方式。
➃ 上我的實體課覺得時間太短、觀念太多、實作跟不上,身心靈在實務課程節奏有點緊湊感覺吃力的朋友,但又覺得內容充實,可以學到很多東西的朋友,這是最適合你做一次打好基底的內容與形式。
➄ 對於內容提及的部份,覺得觀念不夠清楚,不知道怎麼實際進行重構、設計與實作出那些技巧和模式,最終達成 #簡單設計 成果的朋友。
甚至我覺得,即使不是這種學習模式的朋友,大概也避不掉得反覆看、反覆練習好幾遍,因為要行雲流水,得各環節都打通才行。
【#不適合哪些朋友】
➀ 如果因為影片課程的屬性,而只期待著課程費用要比較低的朋友,建議不要買。
➁ 只想看影片,不想打開 IDE 跟著練習 coding 的,建議不要買。不要浪費時間浪費錢,你只看食譜也無法學會煮菜,只看游泳的影片也無法學會游泳的。
➂ 看不懂也不想發問的人,不要買。因為這樣誰都幫不了你。
➃ 不想要自己相關資料被壓浮水印在自己購買的影片上的人,不要買。有壓你個資的影片,只有你跟我擁有。而你的個資只會在影片上使用,不會挪作他用。(確定的是,上面不會有身份證字號或護照號碼)
【#票價資訊】
♥ 一般票:NT$ 36,000
♥ 過來人推薦票(請附上已經購買此影音課程的推薦人,報名附上他的出貨序號,以及 email):NT$ 35,000
♥ 老鳥票(指 2018 年後參加過 91 的公開培訓課): NT$ 34,500
定價標準緣由,請見課程介紹。
【#報名方式】
想要報名的同學,請將下列的報名資訊 joeychen@odd-e.com。確認報名成功之後,我會回信給您告知出貨序號,以及對應的匯款資訊。
> 信件標題:Classic TDD by Example: {name} 報名 {程式語言版本}
- 真實姓名
- 聯絡電話
- email (相關權限與未來老鳥票依據)
- 遮罩過的身份證照片(身份證字號、生日、換發日請都遮罩)
- 與真實姓名能對得起來的名片、帳單或信件照片(用來雙重驗證真實姓名的一致性,以免有人用他人身份證或網路上的身份證照片)
- 程式語言
- 推薦人的出貨序號與 email (如果票種選擇 【過來人推薦票】,請附上此資訊)
【#授權條款】
購買人付費之後,等同於已同意下列條款:
- 授權僅限本人觀看,不限制裝置,無限期,無限次觀看影片。不依賴於平台,將直接提供影片下載連結,所以請不用擔心在平台上下架的問題。
- 購買將採實名驗證,影片將壓上購買人相關個人資訊浮水印。影片、程式碼內容等,未經本人授權,不得於公開場所、平台觀看,不得擅自販售、分享、散佈、擷取圖片或影片片段侵害作者權益等行為。請購買人妥善保管影片,以保護雙方權益。
- 不論「有償或無償」,均不得已在未經同意的情況下將影片做公開分享、重製、散佈、改做
- 本於誠實信用原則,影片僅供個人學習使用,不得共用
- 若違反前述約定,則著作財產權人可以請求所受損害與所失利益
【#出貨清單與出貨狀態】
因每個人的影片都會有客製化的調整與浮水印資訊,故每天產能有限,目前一天可處理 4~8 張訂單。
所以列出對應的出貨清單與狀態,各位可以看到自己的出貨序號,以及目前處理到哪一張訂單了。
出貨清單:https://hackmd.io/@SYvyb1O4SLq8W6nvAQW5mw/ByVVUt86O
static class 在 notebookspec Facebook 的最佳解答
แกะกล่องจอเทพราคาเกือบครึ่งแสน จอโค้ง 49 นิ้ว ออปชั่นโคตรเยอะ ของโคตรแน่น ฟีเจอร์เด็ดขนาดไหน มีออปชั่นอะไรบ้างในกล่อง พร้อมพรีวิวเบื่องต้นกับจอเทพ #SAMSUNG #ODYSSEY G9
พร้อมชมรีวิวเต็มๆได้ที่ #NBS เร็วๆนี้
คำเตือน ตอนซื้ออย่าลืมช่วนเพื่อนมาช่วยแบก ช่วยประกอบกันด้วย
สเปค SAMSUNG ODYSSEY G9 ราคา 45,990 บาท
- 49" Screen Size (Class)
- 1000R Screen Curvature
- 32:9 Aspect Ratio
- 420cd/m2 Brightness (Typical)
- 2500:1(Typ) Contrast Ratio Static
- 5,120 x 1,440 Resolution
- 1(GTG) Response Time
- 125%(Typ.) sRGB Coverage
- Max 240Hz Refresh Rate
สเปคเพิ่มเติม : https://www.samsung.com/th/monitors/odyssey-g95t/
static class 在 NotebookSPEC Youtube 的精選貼文
แกะกล่องจอเทพราคาเกือบครึ่งแสน จอโค้ง 49 นิ้ว ออปชั่นโคตรเยอะ ของโคตรแน่น ฟีเจอร์เด็ดขนาดไหน มีออปชั่นอะไรบ้างในกล่อง พร้อมพรีวิวเบื่องต้นกับจอเทพ #SAMSUNG #ODYSSEY G9
พร้อมชมรีวิวเต็มๆได้ที่ #NBS เร็วๆนี้
คำเตือน ตอนซื้ออย่าลืมช่วนเพื่อนมาช่วยแบก ช่วยประกอบกันด้วย
สเปค SAMSUNG ODYSSEY G9 ราคา 45,990 บาท
- 49" Screen Size (Class)
- 1000R Screen Curvature
- 32:9 Aspect Ratio
- 420cd/m2 Brightness (Typical)
- 2500:1(Typ) Contrast Ratio Static
- 5,120 x 1,440 Resolution
- 1(GTG) Response Time
- 125%(Typ.) sRGB Coverage
- Max 240Hz Refresh Rate
สเปคเพิ่มเติม : https://www.samsung.com/th/monitors/odyssey-g95t/
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static class 在 一二三渡辺 Youtube 的精選貼文
今日は雨の中、
CB400Fが三台も来てくれました、
素晴らしいコンディションです、
日本初のダチョウ料理専門店、
ライダーズカフェMACHⅢ
大阪府堺市美原区北余部469-6
TEL&FAX072-361ー3171
http://www.h4.dion.ne.jp/~maltuha/index.html
Dream CB400FOUR (Doremushebe Foix) is a motorcycle announced by Honda Motor Co., Ltd. on December 3, 1974. The alias is "CB400F", and is "Yonfoa", "Forwan (Forinwan)", and "Sheyon. ", etc.
Dream CB400FOUR is two to which dream CB350FOUR is put on the market as a successor of one.
That time..this..class..domestic production..car..only..series..cylinder..model..dream..that time..cylinder..dream..series..youngest brother..series..top..model..dream..get on..helmet..receive..surroundings..stop..establishment..president..Honda..Soichiro..get on..make..say..plan..say.The..dream..similar to..put out..muffler..externals..have..the..static..image..keep from..power..performance..twin..cylinder..slow..Foix..cylinder..say..welcome..evaluation..give.
Dream CB400FOUR that received this and was planned took a light cafe racer style that adopted the set muffler that began to become popular at that time and the retreating step to the whole and became a popular model. The engine was improved to 408cc the boa based on the thing of 347cc of dream CB350FOUR, and the transmission of an unusual six step changing the speed type was adopted first in addition as a car of HONDA on the market at that time. In this case, it is said that the instruction "The number of cooling fins of the engine (Chiefly for reasons of the externals) is increased" being pointed out by Soichiro Honda when dream CB350FOUR is developed was achieved.
Core was reduction in costs at the same time in the metallic painting though the logo of the sticker looked very fresh a simple solid color at that time at the time of general the emblem of the metal. The purpose of the set muffler is lightening and reduction in costs, and it did not understand well for the pulsation effect by the set at that time. It is said that the purpose of the Ekipai shape to draw a flowing peculiar line is to avoid interference with the oil filter, and there is an anecdote to set up the drawing from Ekipai made by "Actual thing" match of the development site, too.
It was pointed out by the police at that time that it was a sentence that the impressive advertisement of the catalog '400. You were a wind' associates the reckless driving act by the hot-rodder after it put it on the market, and was changed part to the copy of the content that gave back the ownership feeling '400. You like it'.
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static class 在 一二三渡辺 Youtube 的最佳解答
ホンダ・CB400 4into1 HONDA Dream CB400FOUR 408cc 4into1 ヨンフォア フォーワン おぉ400。お前は風だ
Dream CB350FOUR around at that time, was a model with four-cylinder engine is the only domestic car in this class, and "... shall have suffered two helmet" to ride a top model in the series is CB750FOUR Dream Dream cylinder CB4 It is said also to have been planned in the word says, "if, I also make it ride" is founder Soichiro Honda was stopped and the president. Performance and modest power from a static image of those with four muffler as well as evaluation CB750FOUR unwelcome dream, "says Foy slow (four-cylinder) than (cylinder 2) Twin" was given.
It is planned that this is a car like this has become a popular model incorporated into a cafe racer style light whole adopted a step that muffler assembly and retreat of the epidemic has begun to see signs. Up to 408cc engine is based on the amount of exhaust 347cc Dream CB350FOUR. 6-speed transmission was rare at that time as is commercially available as the car has been adopted Honda CB250T released in 1973 followed by further. Is said to achieve an indication that "to increase (from its appearance reasons mainly) the cooling fins of the engine" had been pointed out from Soichiro Honda CB350FOUR also during the development of the Dream.
Adopt a simple solid color logo sticker on the emblem of the metal era was more common in metallic paint. It is aimed at lighter muffler set, which is down at the same time cost.
Is also a story that caused a drawing from the exhaust pipe exhaust pipe shape drew a line such as a distinctive flowing is said to avoid interference with the oil filter that was created in accordance with "in kind" of development sites [4].
400 Oh. " "Been pointed out from the police at the time and runaway behavior is reminiscent of the catch copy of the catalog by a motorcycle gang called" Oh you're a wind 400. Changes to a copy of the content to have a sense of ownership of "I love you.
400cc parallel twin engine class at the time is the mainstream, taking the same car equipped with four-cylinder engine in spite of that have been developed aimed at cost-based CB350FOUR down thoroughly to dream, from issue two types of licensing system engine-frame specs, as well as in the Japanese model that was costly to reverse was also added for color variation, the Japanese specification end of production in a relatively short period of time. It was being finished production specifications are also outside of Japan and then after a while.
However, production was about the end make the front page of the magazine for the motorcycle was a popular four-cylinder car ride only in the limited license. Was driving the car used car sales price premium is greater than the price of new cars at that time but has been produced Hawk series of two-cylinder engine with reduced production costs as the next model for this purpose.
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