深入剖析Java中实现yyyy-MM-dd日期格式化的两大核心方案。 了解传统SimpleDateFormat的线程安全挑战及应对策略，以及Java 8引入的现代DateTimeFormatter如何以其线程安全和不可变性优势简化开发。本文将详细对比两者特性，助你根据项目需求做出明智选择，确保日期处理 ...

SimpleDateFormat 在多线程环境下存在线程安全问题。 * SimpleDateFormat线程不安全，没有保证线程安全(没有加锁)的情况下，禁止使用全局SimpleDateFormat,否则报错 NumberFormatException * private static final SimpleDateFormat dateFormat = new SimpleDateFormat ...

java.lang.NumberFormatException: For input string: "" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Long.parseLong ...

Nexus 5X and Nexus 6P. OS version 8.1.0 Fatal Exception: java.lang.AssertionError: No NameTypeIndex match for SHORT_STANDARD at android.icu.impl.TimeZoneNamesImpl ...

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