Effective Java 57 Use exceptions only for exceptional conditions

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Effective Java 57 Use exceptions only for exceptional conditions

Principle Exceptions are, as their name implies, to be used only for exceptional conditions; they should never be used for ordinary control flow. // Horrible abuse of exceptions. Don't ever do this! try { int i = 0; while(true) range[i++].climb(); }…

Effective Java 61 Throw exceptions appropriate to the abstraction

Exception translation: higher layers should catch lower-level exceptions and, in their place, throw exceptions that can be explained in terms of the higher-level abstraction. // Exception Translation try { // Use lower-level abstraction to do our bid…

Effective Java Index

Hi guys, I am happy to tell you that I am moving to the open source world. And Java is the 1st language I have chosen for this migration. It's a nice chance to read some great books like "Effective Java 2nd Edition" and share the note for what I…

《Effective Java》读书笔记 - 9.异常

Chapter 9 Exceptions Item 57: Use exceptions only for exceptional conditions 这条item的意思就是,千万不要用exception来控制control flow的终止,比如: // Horrible abuse of exceptions. Don't ever do this! try { int i = 0; while(true) range[i++].climb(); } catch(ArrayIndexOutO…

Effective Java 目录

<Effective Java>目录摘抄. 我知道这看起来很糟糕.当下,自己缺少实际操作,只能暂时摘抄下目录.随着,实践的增多,慢慢填充更多的示例. Chapter 2 Creating and Destroying Objects Consider static factory methods instead of constructors Consider a builder when faced with many constructor parameters Enforce the s…

Effective Java 65 Don't ignore exceptions

Principle An empty catch block defeats the purpose of exceptions, which is to force you to handle exceptional conditions. // Empty catch block ignores exception - Highly suspect! try { ... } catch (SomeException e) { } At the very least, the catch bl…