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java的lang包中的常用类有哪些

2025-04-02 05:02:00

推荐回答（3个）

回答1：

1 String，八种基本数据类型的包装类都在这个包中2 Object：类层次结构的根类3 Math：执行基本数学方法运算4 StringBuffer：线程安全的可变字符序列5 thread：是程序中的执行线程。Java 虚拟机允许应用程序并发地运行多个执行线程。

回答2：

Math Class Enum 基本类型的包装类 Number String StringBuffer String Builder System Object

回答3：

那可很多了.. 各种数据类型...

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