1 GuideTry... Catch... Finally is probably a familiar statement, and it seems easy to understand logically. However, the lessons I personally learned tell me that this is not as simple and obedient as I imagined. Believe it? Let's take a look at the
Try-catch in-depth understandingLet's look at an example (example 1) to explain the process of try, catch, finally in Java
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publicclassTryCatchFinally
windhaunting, original addressUsed to be try{} catch (...) {} to catch some unexpected exceptions in C + +, today read Winhack's post only to know, this method in VC is actually unreliable. For example, the following code: Try { BYTE* pch;
C ++ Exception Handling: Try, catch
Try {// a statement that may have an error. If there is an error, throw... // Initialize an exception object} catch (type name [shape parameter name]) // exception description (exception specifier) {// do
Today I will explain to you the Java error and exception handling mechanism and the execution order of related exceptions. If there are deficiencies, please criticize1. The Prime Minister briefly describes the errors (error) and exceptions
Used to be try{} catch (...) {} to catch some unexpected exceptions in C + +, today read Winhack's post only to know, this method in VC is actually unreliable. For example, the following code:Used to be try{} catch (...) {} to catch some unexpected
The unusual English word is exception, the literal translation is "The accident, the exception" The meaning, is also abnormal condition. In fact, exceptions are essentially procedural errors, including program logic errors and system errors.
A
1. Throws appears in the method function head, can be used alone, and throw appears in the function body, can not be used alone, throw or try-catch-finally statement supporting use, or with throws matching use.2.throws is basically declaring that
The code examples in many books use try catch in database access functions to mislead beginners.
Let's analyze a common function (Some large companies in ChinaCode, negative examples, cannot be imitated),
1 public int updateData(String sql)
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