catch,Throwable或Exception,有什么区别?I think I was asking about the java-Programming language instead of English,okay?

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catch,Throwable或Exception,有什么区别?I think I was asking about the java-Programming language instead of English,okay?
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catch,Throwable或Exception,有什么区别?I think I was asking about the java-Programming language instead of English,okay?
catch,Throwable或Exception,有什么区别?
I think I was asking about the java-Programming language instead of English,okay?

catch,Throwable或Exception,有什么区别?I think I was asking about the java-Programming language instead of English,okay?
catch
n.捕捉,陷阱,捕获物
v.抓住；赶上,了解,感染
Throwable 可投掷的
exception n.例外
Please read:
Java语言要求java程序中（无论是谁写的代码）所有抛出（throw）的异常都必须是从Throwable派生而来.当然,实际的Java编程中,由于JDK平台已经为我们设计好了非常丰富和完整的异常对象分类模型.因此,java程序员一般是不需要再重新定义自己的异常对象.而且即便是需要扩展自定义的异常对象,也往往会从Exception派生而来.所以,对于java程序员而言,它一般只需要在它的顶级函数中catch(Exception ex)就可以捕获出所有的异常对象.所有异常对象的根基类是 Throwable ,Throwable从Object直接继承而来（这是java系统所强制要求的）,并且它实现了 Serializable接口（这为所有的异常对象都能够轻松跨越Java组件系统做好了最充分的物质准备）.从Throwable直接派生出的异常类有Exception和Error .Exception是java程序员所最熟悉的,它一般代表了真正实际意义上的异常对象的根基类.也即是说,Exception 和从它派生而来的所有异常都是应用程序能够catch到的,并且可以进行异常错误恢复处理的异常类型.而Error则表示Java系统中出现了一个非常严重的异常错误,并且这个错误可能是应用程序所不能恢复的,例如LinkageError ,或 ThreadDeath 等.

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