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E:\workspace\test_Zip>jar cvf aa.jar -C src .

System.getProperty("line.separator")

import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream; public class TestMain { public static void main(String[] args) {System.out.println("START");System.out.println("-----------------------------------");fileCopyTest("assets/aa.zip", "assets/bb.zip");fileCopyTest("asse..

private String getCustomDate(String yyyymmdd) { int year = Integer.parseInt(yyyymmdd.substring(0, 4)); int month = Integer.parseInt(yyyymmdd.substring(4, 6)); int date = Integer.parseInt(yyyymmdd.substring(6, 8)); Calendar cal = Calendar.getInstance(); cal.set(year, month - 1, date); cal.add(Calendar.YEAR, -1); // 1년 전 cal.add(Calendar.MONTH, -1); // 한달 전 cal.add(Calendar.DATE, -1); // 하루 전 Simp..

SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.prinltn(formatter.format(new Date())); // output// 2012-05-10 11:25:17

1. Thread 작성 - Thread 를 상속받거나 : class MyThread extends Thread - Runnable 를 구현하거나 : class MyTask implements Runnable 2. Thread 실행 Thread t = new MyThread(); t.start(); Thread t = new Thread(new MyTask()); t.start(); 3. Thread 작업내용 작성 @Override public void run() { // 작업내용 작성 } 4. 일정시간 대기 Thread.sleep(3000); // 3초간 대기