1. The diffrence between java.lang.StringBuffer and java.lang.StringBuilder?
java.lang.StringBuffer: thread-safe, synchronized and not so faster.
java.lang.StringBuilder: faster, performs no synchronization.
2. How to handle uncaught Exception for a thread?
@FunctionalInterface
public static interface Thread.UncaughtExceptionHandler
3. The difference between [checked exceptions] and [unchecked exceptions]?
The class Exception
and any subclasses that are not also subclasses of RuntimeException
are checked exceptions. Checked exceptions need to be declared in a method or constructor‘s throws
clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.
时间: 2024-08-05 23:28:27