java.lang.NumberFormatException: For input string:""at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) 线程:pool-1-thread-20 格式化日期失败 at java.lang.Long.parseLong(Long.java:601) at java.lang.Long.parseLong(Long.java:631) at java.text.DigitList.getLong(DigitList....
at java.lang.Double.parseDouble(Double.java:538) at java.text.DigitList.getDouble(DigitList.java:169) at java.text.DecimalFormat.parse(DecimalFormat.java:2056) at java.text.SimpleDateFormat.subParse(SimpleDateFormat.java:1869) at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1514) at j...
import java.time.Duration; import java.time.LocalDateTime; import java.util.Date; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.TimeUnit; public class ThreadSafeDateFormatDemo { static SimpleDateFormat dateFormat = new SimpleDateFormat("yy...
set2DigitYearStart(java.util.Date) format publicStringBufferformat(Datedate,StringBuffertoAppendTo,FieldPositionpos) Formats the givenDateinto a date/time string and appends the result to the givenStringBuffer. Specified by: formatin classDateFormat ...
2.1.1356 Part 1 Section 20.4.2.13, simplePos (Simple Positioning Coordinates) 2.1.1357 Part 1 Section 20.4.2.14, start (Wrapping Polygon Start) 2.1.1358 Part 1 Section 20.5.2.2, blipFill (Picture Fill) 2.1.1359 Part 1 Section 20.5.2.8, cNvPr (Non-Visual Drawing Properties) 2.1.1360 Part...
import java.util.concurrent.Executors; import java.util.concurrent.TimeUnit; public class ThreadSafeDateFormatDemo { static SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); public static void main(String[] args) { ...
packagecom.monv.str;importjava.util.Calendar;publicclassTestCalender {publicstaticvoidmain(String[] args) {//创建Calender对象Calendar calender = Calendar.getInstance();//因为是被保护的 不能创建对象 所以用Calendar的getInstance()静态方法创建System.out.println(calender.getTime().toLocaleString());//2020...
import java.util.concurrent.Executors; import java.util.concurrent.Semaphore; /** * @author binghe * @version 1.0.0 * @description 测试SimpleDateFormat的线程不安全问题 */ public class SimpleDateFormatTest01 { //执行总次数 private static final int EXECUTE_COUNT = 1000; ...
import java.util.concurrent.TimeUnit; public class ThreadSafeDateFormatDemo { static SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); public static void main(String[] args) { ExecutorService executor = Executors.newFixedThreadPool(10); ...
import java.text.SimpleDateFormat; public class SimpleDateFormatTest { public static void main(String[] args) { for (int i = 0; i < 20; ++i) { Thread thread = new Thread(() -> { try { // 每个线程都new一个 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH...