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最新文章列表
Item 59: Avoid unnecessary use of checked exceptions
1. Unlike return codes, the checked exceptions force the programmer to deal with exceptional conditions, greatly enhancing reliability.
2. An unchecked exception is more appropriate unless the ...
Item 58: Use checked exceptions for recoverable conditions and runtime exception
1. The Java programming language provides three kinds of throwables: checked exceptions, runtime exceptions, and errors.
2. Use checked exceptions for conditions from which the caller can reaso ...
Chapter 11. Exceptions, Assertions, Logging, and Debugging
1. An exception object is always an instance of a class derived from Throwable. 2. The Error hierarchy describes internal errors and resource exhaustion situations inside the Java runtime system. ...
浅谈java异常[Exception] (转)
一. 异常的定义
在《java编程思想》中这样定义 异常:阻止当前方法或作用域继续执行的问题。虽然java中有异常处理机制,但是要明确一点,决不应该用"正常"的态度来看待异常。绝对一点说异常就是某种意义上的错误,就是问题,它可能会导致程序失败。之所以java要提出异常处理机制,就是要告诉开发人员,你的程序出现了不正常的情况,请注意。
记得当初学习java的时候,异常总是搞不太 ...
Chapter 12. Error Handling with Exceptions -- Thinking in Java
1) An exceptional condition is a problem that prevents the continuation of the current method or scope. It’s important to distinguish an exceptional condition from a normal problem, in which you have ...