๋ฐ˜์‘ํ˜•

Java 117

[TIL] 2022.08.29

JAVAโ˜•๏ธ Java TPC(์ƒ๊ฐํ•˜๊ณ , ํ‘œํ˜„ํ•˜๊ณ , ์ฝ”๋”ฉํ•˜๊ณ ) Part-1 - JVM์˜ ๋ฉ”๋ชจ๋ฆฌ ๋ชจ๋ธ (JVM์ด ์‚ฌ์šฉํ•˜๋Š” ๋ฉ”๋ชจ๋ฆฌ ์˜์—ญ - 4๊ฐ€์ง€) ํ‡ด๊ทผํ•˜๊ณ  ๊ณต๋ถ€๋ฅผ ์‹œ์ž‘ํ•œ ์ฒซ๋‚ ! ๊ฐ•์˜ 2๊ฐœ๋Š” ๋“ฃ๊ณ  ์‹ถ์—ˆ๋Š”๋ฐ ์‹œ๊ฐ„์ด ์—†์–ด์„œ ํ•˜๋‚˜๋ฐ–์— ๋“ฃ์ง€๋ฅผ ๋ชปํ–ˆ๋‹ค ^_ใ…  ๊ทธ๋ž˜๋„ ์‹œ์ž‘ํ•œ ๊ฒŒ ์˜๋ฏธ๊ฐ€ ์žˆ์œผ๋‹ˆ ๋‚ด์ผ๋ถ€ํ„ฐ ๋” ์ž˜ ํ•ด๋ด์•ผ์ง€ ์˜ค๋Š˜์€ ์šด๋™์„ ํ–ˆ์œผ๋‹ˆ ๋‚˜๋ฆ„ ๋งŒ์กฑํ•˜๋Š” ์›”์š”์ผ

CodeSiri/TIL 2022.09.14

[TIL] 2022.08.28

JAVAโ˜•๏ธ Java TPC(์ƒ๊ฐํ•˜๊ณ , ํ‘œํ˜„ํ•˜๊ณ , ์ฝ”๋”ฉํ•˜๊ณ ) Part-1 - ๋ฐ์ดํ„ฐ๋ฅผ ์ด๋™ํ•˜๋ผ(๋ณ€์ˆ˜ VS ๋ฐฐ์—ด์˜ ๊ด€๊ณ„) - ๋ฐ์ดํ„ฐ๋ฅผ ์ด๋™ํ•˜๋ผ(์‹ค์Šต) - ๋ฉ”์„œ๋“œ๋Š” ๋ณ€์ˆ˜๋‹ค(๋ณ€์ˆ˜ VS ๋ฉ”์„œ๋“œ์˜ ๊ด€๊ณ„) - ๋ฉ”์„œ๋“œ๋Š” ๋ณ€์ˆ˜๋‹ค(์‹ค์Šต) โ€‹ โ€‹ ์‚ฌ์‹ค ์–ด์ œ๋ถ€ํ„ฐ ๋‹ค์‹œ ๊ณต๋ถ€๋ฅผ ์‹œ์ž‘ํ–ˆ๋Š”๋ฐ ์˜ค๋Š˜๋ถ€ํ„ฐ ๋‚จ๊ธฐ๊ฒŒ ๋˜๋Š” TIL ๊พธ์ค€ํžˆ ์ž‘์„ฑํ•  ์ˆ˜ ์žˆ์„์ง€๋Š” ๋ชจ๋ฅด๊ฒ ์ง€๋งŒ ์‹œ์ž‘์ด ๋ฐ˜์ด๋‹ค! โ€‹ โ€‹ โ€‹ โ€‹ Java ๊ฐ•์˜๋ฅผ ๋“ฃ๊ณ  ์žˆ๋Š”๋ฐ ๊ทธ๋ฆผ์œผ๋กœ ์„ค๋ช… ๋“ค์œผ๋‹ˆ ์ดํ•ดํ•˜๊ธฐ ์ข€ ๋” ์‰ฌ์šด ๋А๋‚Œ? ์•ž์œผ๋กœ * ** *** **** ์™€ ๊ฐ™์€ ๊ตฌ์กฐ๋ฅผ ์ถœ๋ ฅํ•˜๋ ค๊ณ  ํ•  ๋•Œ ๋ฌด์กฐ๊ฑด ๋ฐ˜์‚ฌ๋กœ for์„ ์“ฐ์ง€๋Š” ์•Š์„ ๊ฒƒ ๊ฐ™๋‹ค.

CodeSiri/TIL 2022.09.14

[IntelliJ] ์ธํ…”๋ฆฌ์ œ์ด ๋ฌด๋ฃŒ ๋ผ์ด์„ผ์Šค ํ•™์ƒ ๊ณ„์ • ์‚ฌ์šฉํ•˜๊ธฐ

Java ๊ฐœ๋ฐœ ํˆด๋กœ ๋งŽ์ด ์‚ฌ์šฉ๋˜๋Š” IDE๋Š” IntelliJ(์ธํ…”๋ฆฌ์ œ์ด) ์™€ Eclipse(์ดํด๋ฆฝ์Šค)๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ์ธํ…”๋ฆฌ์ œ์ด๋Š” ์œ ๋ฃŒ์ด๊ณ  ์ดํด๋ฆฝ์Šค๋Š” ๋ฌด๋ฃŒ๋ผ์„œ ๊ตญ๋น„ ํ•™์›์ด๋‚˜ ํ˜ผ์ž ๊ณต๋ถ€ํ•  ๋•Œ ์ดํด๋ฆฝ์Šค๋ฅผ ๋งŽ์ด ์ด์šฉํ•ฉ๋‹ˆ๋‹ค. ์ฒ˜์Œ์— ์ดํด๋ฆฝ์Šค๋ฅผ ์‚ฌ์šฉํ•˜๋‹ค๊ฐ€ ์ธํ…”๋ฆฌ์ œ์ด๋ฅผ ๋ง›๋ดค๋”๋‹ˆ ๋น ์ ธ๋‚˜์˜ฌ ์ˆ˜๊ฐ€ ์—†์—ˆ์Šต๋‹ˆ๋‹ค. ์ธํ…”๋ฆฌ์ œ์ด๋Š” ํ•™์ƒ ๊ณ„์ •์ด ์žˆ์œผ๋ฉด ๋ฌด๋ฃŒ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์œผ๋‹ˆ ํ•œ ๋ฒˆ์ฏค ๊ฒฝํ—˜ํ•ด ๋ณด๋Š” ๊ฒƒ์„ ์ถ”์ฒœ๋“œ๋ฆฝ๋‹ˆ๋‹ค. โ€‹ โ€‹ 1. Jetbrains ๋งํฌ๋กœ ์ ‘์†ํ•ฉ๋‹ˆ๋‹ค. https://www.jetbrains.com/community/education/#students 2. Apply Now ๋ฒ„ํŠผ์„ ํด๋ฆญํ•ฉ๋‹ˆ๋‹ค. โ€‹ 3. ์ •๋ณด ์ž…๋ ฅ์„ ๋น ๋ฅด๊ฒŒ ๋๋ƒ…๋‹ˆ๋‹ค. ์ค‘์š”ํ•œ ์ ์€ ์ด๋ฉ”์ผ ์ฃผ์†Œ ์ž…๋ ฅ๋ž€์— ํ•™๊ต ๊ณ„์ •์„ ์ž…๋ ฅํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. โ€‹ 4. ์ž…๋ ฅํ•œ ํ•™๊ต ๊ณ„์ •์œผ..

[TIL] 2021.09.03

Spring ๐Ÿƒ [์Šคํ”„๋ง ํ•ต์‹ฌ ์›๋ฆฌ - ๊ธฐ๋ณธ ํŽธ] 03. ์Šคํ”„๋ง ํ•ต์‹ฌ ์›๋ฆฌ ์ดํ•ด 2 - ๊ฐ์ฒด ์ง€ํ–ฅ ์›๋ฆฌ ์ ์šฉ 01. ์ƒˆ๋กœ์šด ํ• ์ธ ์ •์ฑ… ๊ฐœ๋ฐœ 02. ์ƒˆ๋กœ์šด ํ• ์ธ ์ •์ฑ… ์ ์šฉ๊ณผ ๋ฌธ์ œ์  03. ๊ด€์‹ฌ์‚ฌ์˜ ๋ถ„๋ฆฌ 04. AppConfig ๋ฆฌํŒฉํ„ฐ๋ง 05. ์ƒˆ๋กœ์šด ๊ตฌ์กฐ์™€ ํ• ์ธ ์ •์ฑ… ์ ์šฉ 06. ์ „์ฒด ํ๋ฆ„ ์ •๋ฆฌ 07. ์ข‹์€ ๊ฐ์ฒด ์ง€ํ–ฅ ์„ค๊ณ„์˜ 5๊ฐ€์ง€ ์›์น™์˜ ์ ์šฉ 08. IoC, DI, ๊ทธ๋ฆฌ๊ณ  ์ปจํ…Œ์ด๋„ˆ 09. ์Šคํ”„๋ง์œผ๋กœ ์ „ํ™˜ํ•˜๊ธฐ GitHub ๐Ÿธ

CodeSiri/TIL 2021.09.03

[Java | ์ž๋ฐ”] ๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋‹จ๊ณ„๋ณ„๋กœ ํ’€๊ธฐ - 4๋‹จ๊ณ„ (while)

10952๋ฒˆ ๋‘ ์ •์ˆ˜ A์™€ B๋ฅผ ์ž…๋ ฅ๋ฐ›์€ ๋‹ค์Œ, A+B๋ฅผ ์ถœ๋ ฅํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. package level04; import java.util.Scanner; public class Ex10952 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while(true) { int A = sc.nextInt(); int B = sc.nextInt(); if (A == 0 && B == 0) { break; } System.out.println(A + B); } } } 10951๋ฒˆ ์ž…๋ ฅ์ด ๋๋‚  ๋•Œ๊นŒ์ง€ A+B๋ฅผ ์ถœ๋ ฅํ•˜๋Š” ๋ฌธ์ œ. EOF์— ๋Œ€ํ•ด ์•Œ์•„ ๋ณด์„ธ์š”. package level04; import java.uti..

Algorithm/BackJoon 2021.08.26

[TIL] 2021.08.26

Java โ˜• [BOJ] Level 04. While 01. A+B-5 02. A+B-4 03. ๋”ํ•˜๊ธฐ ์‚ฌ์ดํด Spring ๐Ÿƒ [์Šคํ”„๋ง ํ•ต์‹ฌ ์›๋ฆฌ - ๊ธฐ๋ณธ ํŽธ] 02. ์Šคํ”„๋ง ํ•ต์‹ฌ ์›๋ฆฌ ์ดํ•ด 1 - ์˜ˆ์ œ ๋งŒ๋“ค๊ธฐ 01. ํ”„๋กœ์ ํŠธ ์ƒ์„ฑ 02. ๋น„์ฆˆ๋‹ˆ์Šค ์š”๊ตฌ์‚ฌํ•ญ๊ณผ ์„ค๊ณ„ 03. ํšŒ์› ๋„๋ฉ”์ธ ์„ค๊ณ„ 04. ํšŒ์› ๋„๋ฉ”์ธ ๊ฐœ๋ฐœ 05. ํšŒ์› ๋„๋ฉ”์ธ ์‹คํ–‰๊ณผ ํ…Œ์ŠคํŠธ 06. ์ฃผ๋ฌธ๊ณผ ํ• ์ธ ๋„๋ฉ”์ธ ์„ค๊ณ„ 07. ์ฃผ๋ฌธ๊ณผ ํ• ์ธ ๋„๋ฉ”์ธ ๊ฐœ๋ฐœ 08. ์ฃผ๋ฌธ๊ณผ ํ• ์ธ ๋„๋ฉ”์ธ ์‹คํ–‰๊ณผ ํ…Œ์ŠคํŠธ GitHub ๐Ÿธ ๋‚˜๋Š” ๋Ÿฐํƒ€์ž„ ์—๋Ÿฌ๊ฐ€ ๋„ˆ๋ฌด ์‹ซ๋‹ค... ์‚ฌ๋ผ์ ธ... ์Šคํ”„๋ง ์ธ๊ฐ•์„ ๋“ฃ๋‹ค ๋ณด๋‹ˆ ์ž๋ฐ”๋ฅผ ๋‹ค์‹œ ํ•œ๋ฒˆ ๋Œ๋ ค์•ผ๊ฒ ๋‹ค๋Š” ์ƒ๊ฐ์ด ๋“ค์—ˆ๋‹ค๐Ÿ˜‚ ์ž๋ฐ”์˜ ์ •์„ ํ•˜๋ฃจ์— 1-2๋‹จ์›์”ฉ ๋‹ค์‹œ 1 ํšŒ๋…์„ ๋ชฉํ‘œ๋กœ! 8์›” ์•ˆ์— ์™„๋ฃŒํ•˜๊ธฐ!

CodeSiri/TIL 2021.08.26

[Java | ์ž๋ฐ”] ๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋‹จ๊ณ„๋ณ„๋กœ ํ’€๊ธฐ - 3๋‹จ๊ณ„

2739๋ฒˆ N์„ ์ž…๋ ฅ๋ฐ›์€ ๋’ค, ๊ตฌ๊ตฌ๋‹จ N๋‹จ์„ ์ถœ๋ ฅํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. ์ถœ๋ ฅ ํ˜•์‹์— ๋งž์ถฐ์„œ ์ถœ๋ ฅํ•˜๋ฉด ๋œ๋‹ค. package Level03; import java.util.Scanner; public class Ex2739 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int i; int N = sc.nextInt(); for (i = 1; i < 10; i++) { System.out.println(N + " * " + i + " = " + N * i); } } } 10950๋ฒˆ ๋‘ ์ •์ˆ˜ A์™€ B๋ฅผ ์ž…๋ ฅ๋ฐ›์€ ๋‹ค์Œ, A+B๋ฅผ ์ถœ๋ ฅํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. package Level03; import java...

Algorithm/BackJoon 2021.08.26

[Java | ์ž๋ฐ”] ๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋‹จ๊ณ„๋ณ„๋กœ ํ’€๊ธฐ - 2๋‹จ๊ณ„

1330๋ฒˆ ๋‘ ์ •์ˆ˜ A์™€ B๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, A์™€ B๋ฅผ ๋น„๊ตํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. package Level02; import java.util.Scanner; public class Ex1330 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); if (a > b) { System.out.println(">"); } else if (a < b) { System.out.println("

Algorithm/BackJoon 2021.08.25

[TIL] 2021.08.25

Java โ˜• [BOJ] Level 02. if๋ฌธ 01. ๋‘ ์ˆ˜ ๋น„๊ตํ•˜๊ธฐ 02. ์‹œํ—˜ ์„ฑ์  03. ์œค๋…„ 04. ์‚ฌ๋ถ„๋ฉด ๊ณ ๋ฅด๊ธฐ 05. ์•Œ๋žŒ ์‹œ๊ณ„ [BOJ] Level 03. for๋ฌธ 01. ๊ตฌ๊ตฌ๋‹จ 02. A+B-3 03. ํ•ฉ 04. ๋น ๋ฅธ A+B 05. N ์ฐ๊ธฐ 06. ๊ธฐ์ฐ N 07. A+B-7 08. A+B-8 09. ๋ณ„ ์ฐ๊ธฐ - 1 10. ๋ณ„ ์ฐ๊ธฐ - 2 11. X๋ณด๋‹ค ์ž‘์€ ์ˆ˜ GitHub ๐Ÿธ java๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ๊ณต๋ถ€ํ•˜๋‹ค ๋ณด๋‹ˆ python๋„ ๋นจ๋ฆฌ ๋” ๊ณต๋ถ€ํ•˜๊ณ  ์‹ถ์–ด์กŒ๋‹ค. ๊ทธ๋ž˜๋„ ํ•˜๋ฃจ ๋งŒ์— 2๋‹จ๊ณ„ ๐Ÿ†™ ์งฌ ๋‚ด์„œ ํŒŒ์ด์ฌ ๊ณต๋ถ€ํ•ด์•ผ์ง€... ๋‚ด์ผ๋ถ€ํ„ฐ๋Š” ๋‹ค์‹œ spring ๊ธฐ์ดˆ ๊ณต๋ถ€๋ฅผ ์‹œ์ž‘ํ•ด์•ผ๊ฒ ๋‹ค!

CodeSiri/TIL 2021.08.25

[Java | ์ž๋ฐ”] ๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋‹จ๊ณ„๋ณ„๋กœ ํ’€๊ธฐ - 1๋‹จ๊ณ„

2557๋ฒˆ Hello World!๋ฅผ ํ™”๋ฉด์— ์ถœ๋ ฅํ•˜๋Š” ๋ฌธ์ œ (์˜ˆ์ œ ์ถœ๋ ฅ๊ณผ ๋˜‘๊ฐ™์ด ์ถœ๋ ฅํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.) package Level01; public class Ex2557 { public static void main(String[] args) { System.out.println("Hello World!"); } } 10718๋ฒˆ ๋‘ ์ค„์— ๊ฑธ์ณ "๊ฐ•ํ•œ์นœ๊ตฌ ๋Œ€ํ•œ์œก๊ตฐ"์„ ํ•œ ์ค„์— ํ•œ ๋ฒˆ์”ฉ ์ถœ๋ ฅํ•œ๋‹ค. package Level01; public class Ex10718 { public static void main(String[] args) { System.out.println("๊ฐ•ํ•œ์นœ๊ตฌ ๋Œ€ํ•œ์œก๊ตฐ"); System.out.println("๊ฐ•ํ•œ์นœ๊ตฌ ๋Œ€ํ•œ์œก๊ตฐ"); } } 10171๋ฒˆ ๊ณ ์–‘์ด ์ถœ๋ ฅํ•˜๊ธฐ package Leve..

Algorithm/BackJoon 2021.08.25
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