public static int testBasic(){ int i = 1; try{ i++; System.out.println("try block, i = "+i); }catch(Exception e){ i ++; System.out.println("catch block i = "+i); }finally{ i = 10; System.out.println("finally block i = "+i); }…
有这样一个问题,异常处理大家应该都不陌生,类似如下代码: public class Test { public static void main(String[] args) { int d1 = 0; int d2 = 1; try { d2--; d1 = 1 / d2; System.out.println("try"); }catch (Exception e){ System.out.println("Catch An Exception."); }fin…
结论: ①就算之前return,finally也会执行 ②finally的计算结果不影响之前的return值 ③finally的return值一定是最后的返回结果,因此将return放入finally编译器会警告. static int testReturn() { int res = 0; File file = new File("test"); try { Scanner in = new Scanner(file); return res = 1; } catch (FileN…
关键字:jvm try catch finally return.指令 finally相当于在所有方法返回之前执行一次 finally中含有return其中finally中return会覆盖try和catch中的return finally中不含return时,会先将try或catch中的返回值储存在局部变量表中,最后执行返回是加载到操作数栈返回 public class FinallyReturnBean { public int sayGoodBye(int divide){ int c =…
情况1:try块中没有抛出异常try和finally块中都有return语句 public static int NoException(){ int i=10; try{ System.out.println("i in try block is"+i); return --i; }catch(Exception e){ --i; System.out.println("i in catch - form try block is"+i); return --i;…
