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- 50일차소스_12 MemberDAO { Connection conn; PreparedStatement pstmt; static final String insert="insert into member ; static final String selectOne="select * from member where mid=? and mpw=?"
- 50일차소스_11 MemberDAO { Connection conn; PreparedStatement pstmt; static final String insert="insert into member ; static final String selectOne="select * from member where mid=? and mpw=?"
- 49일차소스_16 org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.jsoup.select.Elements; public class Crawling { public static String admin; public static void start() { final String url="https://comic.naver.com
- Cheat Sheet fetch --all --prune 마지막 커밋을 다시 새로 커밋 git commit --amend --no-edit git push --force C++ 비트 플래그 enum class amp;Permission::EXECUTE) // false Shell 변수 할당 FOO=${BAR} 문자열 비교 (/i : 대소문자 차이 무시) if [ "${FOO}" = "string
- java 공부(1일) : 계산기 만들기 (Calculator) javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; public class Calculator extends JFrame { private JTextField inputSpace; private String num = ""; private String prev_operation
- [예시] java 기본법 (2) public class Main_Ex1 { public static void main(String[] args) { // String 을 Int 또는 Long 변환 CLASS String String Str2 = String.valueOf(i); System.out.println(i); System.out.println(Str2); } }
- [예시] java 기본법 (12) Exception // NumberFormatException package Basic_STD; public class Main_Login { // 실행예외 (Runtime Exception) public static void main(String[] args) { // NumberFormatException String str1 = "200"; String str2 = "200A"
- [예시] java 기본법 (11) Exception // NullPointException package Basic_STD; public class Main_Login { // 실행예외 (Runtime Exception) public static void main(String[] args) { // NullPointerException String str = null; str.equals("Value"); }
- [예시] java 기본법 (13) Exception // ArithmeticException package Basic_STD; public class Main_Login { // 실행예외 (Runtime Exception) public static void main(String[] args) { // ArithmeticException int result = 20/0; System.out.println(result
- [예시] java 기본법 (10) Exception // ArrayIndexOfBoundException package Basic_STD; public class Main_Login { // 실행예외 (Runtime Exception ) public static void main(String[] args) { // ArrayIndexOutOfBoundsException int[] score = new int[5]