Seungdols choiseungho
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| package com.tistory.seungdols.effetive.ex_1; | |
| /** | |
| * @PROJECT effectiveJava | |
| * @PACKAGE com.tistory.seungdols.effetive.ex_1 | |
| * @WRITTER Administrator | |
| * @DATE 2015-09-21 | |
| * @HISTORY | |
| * @DISCRIPT | |
| */ |
choiseungho
/ NutritionFactsEx2.java
Created
September 21, 2015 04:08
자바빈 패턴 -일관성이 훼손 가능하고, 항상 변경이 가능하다.
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| package com.tistory.seungdols.effetive.ex_1; | |
| /** | |
| * @PROJECT effectiveJava | |
| * @PACKAGE com.tistory.seungdols.effetive.ex_1 | |
| * @WRITTER Administrator | |
| * @DATE 2015-09-21 | |
| * @HISTORY | |
| * @DISCRIPT | |
| */ |
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| package com.tistory.seungdols.effetive.ex_1; | |
| /** | |
| * @PROJECT effectiveJava | |
| * @PACKAGE com.tistory.seungdols.effetive.ex_1 | |
| * @WRITTER Administrator | |
| * @DATE 2015-09-21 | |
| * @HISTORY | |
| * @DISCRIPT | |
| */ |
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| public class SingletonPatternEx1 { | |
| //public final field를 이용한 싱글턴 패턴 | |
| public static final SingletonPatternEx1 INSTANCE = new SingletonPatternEx1(); | |
| private SingletonPatternEx1() { | |
| } | |
| } |
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| package com.tistory.seungdols.effetive.ex_1; | |
| /** | |
| * @PROJECT effectiveJava | |
| * @PACKAGE com.tistory.seungdols.effetive.ex_1 | |
| * @WRITTER Administrator | |
| * @DATE 2015-09-21 | |
| * @HISTORY | |
| * @DISCRIPT | |
| */ |
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| package com.tistory.seungdols.effetive.ex_1; | |
| /** | |
| * @PROJECT effectiveJava | |
| * @PACKAGE com.tistory.seungdols.effetive.ex_1 | |
| * @WRITTER Administrator | |
| * @DATE 2015-09-21 | |
| * @HISTORY | |
| * @DISCRIPT | |
| */ |
choiseungho
/ SingletonSerialization.java
Created
September 21, 2015 04:43
singleton class에 Serializable 클래스로 만들기
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| private Object readResolve() | |
| { | |
| //동일한 객체가 반환되도록 하는 동시에, 가짜 객체는 GC가 처리 하도록 함 | |
| return INSTANCE; | |
| } |
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| package com.tistory.seungdols.file.rename; | |
| import java.io.File; | |
| import java.util.Scanner; | |
| /** | |
| * @PROJECT effectiveJava | |
| * @PACKAGE com.tistory.seungdols.File.rename | |
| * @WRITTER Administrator | |
| * @DATE 2015-09-21 |
choiseungho
/ AddActionListnerlambda.java
Last active
November 26, 2015 12:31
기존 리스너 추가와 람다식 사용의 차이 - what different use AddListner and Lambda?
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| btn_search.addActionListener(e -> { | |
| btnAction(e); | |
| }); | |
| btn_search.addActionListener(new ActionListener() { | |
| @Override | |
| public void actionPerformed(ActionEvent e) { | |
| btnAction(e); | |
| } | |
| }); |
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| String path = GetFilePath.class.getResource("").getPath();//현재 자신의 경로 | |
| String path = GetFilePath.class.getResource("/").getPath();//classes의 최상위 경로 | |
| new File("").getAbsolutePath();//절대 경로 | |
| new File("").getCanonicalPath();//상대 경로 |
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