Selected 30 java written test questions
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Java
A start() B run() C exit() D getPriority()
Answer: abd
2. The following is about Java The correct statement of lang. exception class is ()
A inherits from throwable B serialable CD. I don't remember. It's incorrect anyway
Answer: a
Extension: difference between error and exception (error vs exception)
java. Lang. error: subclass of throwable, used to mark serious errors. Reasonable applications should not try / catch such errors. The vast majority of mistakes are abnormal and should not occur at all. java. Lang. exception: subclass of throwable, used to indicate a reasonable condition that the program wants to catch. That is, it is only a program running condition, not a serious error, and encourages the user program to catch it.
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