return 1; } finally { return 2; } When the Try block executes its return, the finally block is entered with the reason of returning the value 1. However, inside the finally block the value 2 is returned, so the initial intention is forgotten. In fact, if any of the other code in t...
*** 12.4. Try, catch, and finally You catch exceptions by enclosing code in Try blocks. The basic syntax for a Try block is: { statements } catch (exception_type1 identifier1) { statements } catch (_type2 identifier2) {statements ... } finally { statements } where...
The finally block always executes when the try block exits, ensuring that cleanup code runs. Usage The finally block is used in conjunction with try and catch blocks. It is placed after the catch block or directly after the try block if no catch block is present. Syntax try { // Code ...
Putting cleanup code in a finally block is always a good practice, even when no exceptions are anticipated. Note: The finally block may not execute if the JVM exits while the try or catch code is being executed. The try block of the writeList method that you've been working with here...
finally内部使用 return 语句是一种很不好的习惯,如果try中还有return语句,它会覆盖了try 区域中return语句的返回值,程序的可读性差。面对上述情况,其实更合理的做法是,既不在try block内部中使用return语句,也不在finally内部使用return语句,而应该在 finally 语句之后使用return来表示函数的结束和返回。
You catch exceptions by enclosing code in Try blocks. The basic syntax for a Try block is: try { statements } catch (exception_type1 identifier1) { statements } catch (exception_type2 identifier2) { statements ... } finally { statements ...
} public static void main(String a[]) { try { methodA(); } catch (Exception e) { System.out.println("Exception caught in main = "+e); } methodB(); methodC(); }} Output: We are inside methodA()The methodA()'s finally block executesException caught in main = java.lang.Run...
finally出现下划线提示finally block does not complet #javapublic static int method() { try { return...
You catch exceptions by enclosing code in Try blocks. The basic syntax for a Try block is: try { statements } catch (exception_type1 identifier1) { statements } catch (exception_type2 identifier2) { statements ... } finally { statements ...
Java代码 publicstaticvoidmain(String[] args) {try{thrownewRuntimeException(); }catch(Exception e) {//}finally{return; } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 结论是:依旧不行。java里面的异常分为可不获和不可捕获两类,即便使用到catch块,也会导致非捕获的错误被finally吃掉。