(5-1)利用()可以取得系统当前时间(毫秒)。
A: System.getTime()
B: System.currentTimeMillis()
C: System.getDate()
D: System.time()
A: System.getTime()
B: System.currentTimeMillis()
C: System.getDate()
D: System.time()
举一反三
- 调节罗盘系统1直到和罗盘系统 2 一致。 A: Adjust compass system 1 until it agrees with compass system 2. B: Rig compass system 1 until it agrees with compass system 2. C: Synchronize compass system 1 with compass system 2.
- 确保磁罗盘系统 1 和磁罗盘系统 2 是同步的。 A: Make sure that compass system 1 and compass system 2 are synchronized. B: Make sure that compass system 1 and compass system 2 are coincident. C: Coordinate compass system 1 and compass system 2.
- Embedded operating system has gone through four stages: No operating system, simple operating system, real time operating system, and Internet oriented operating system.
- Two systems of weights and measures used in the U.S. are ______. A: the U. S. Customary System and the metric system B: the International System and the metric system C: the Imperial System and the metric system D: the Customary System and the Imperial system
- 3、System类中的getProperty( String key)方法能够获取指定的系统属性值，下列（）可以获取当前操作系统的名称。 A: System类.getProperty( "os.name" ); B: System类.getProperty( "os.version" ); C: System类.getProperty( "name" ); D: System类.getProperty( "version" );