try {}里有一个return语句,那么紧跟在这个try后的finally {}里的code会不会被执行,什么时候被执行,在return前还是后?解释:inally里的代码会执行,在return之前执行 相关知识点: 试题来源: 解析finally中的代码会在return之前执行在Java中,无论try块中是否包含return语句,finally块中的代码都会执行。当try块中有
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...
java在finally里面执行save方法没生效 java中finally的作用 最近在读Thinking In Java,秉着有些地方还能知道自己不会的精神,都去好好查阅了一些资料,在内存分配这一章,看到finalize()这个方法,刚开始很不理解,查阅了一些资料,顺带看了一下final、finally,现在分享一下。 一、final的介绍 final可用在4个地方,分别是...
Java 语言规范第四版(《The Java™ ProgrammingLanguage, Fourth Edition》)中对于 try,catch,和 finally 的描述。 *** 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 identifier...
try {// some code that may throw an exception} catch (Exception e) {// handle the exception} finally {// code in this block will always be executed// e.g., close resources, cleanup, etc.} finalize: finalize是一个方法,属于Object类中的一个方法。它在对象被垃圾回收之前被调用,允许对象在...
java的finally一定会执行吗 java中finally一定会执行吗 个人总结: 1.finally是否一定执行? a) 只有与 finally 相对应的 try 语句块得到执行的情况下,finally 语句块才会执行。若在执行try之前 return 或者抛出异常,则try不会执行,try块的finally自然不会执行。
In the world of Java programming, precision in terminology is crucial, especially when it comes to the trio of "final," "finally," and "finalize." These concepts, although sharing linguistic similarities, serve distinct roles in Java code. Understanding their nuances is paramount for Java develop...
close () ; } public static int devide (int num1, int num2 ){ return num1 / num2 ; } } /*** ---欢迎使用命令行除法计算器--- 2 0 Exception in thread "main" java.lang.ArithmeticException : / by zero at com.example.AllDemo.devide( AllDemo.java:30 ) at com.example.AllDemo...
Finally: Runs its code before terminating the program. 2.3.1 try语句 try语句用大括号{}指定了一段代码,该段代码可能会抛弃一个或多个例外。 2.3.2 catch语句 catch语句的参数类似于方法的声明,包括一个例外类型和一个例外对象。例外类型必须为Throwable类的子类,它指明了catch语句所处理的例外类型,例外对象则...
1classMultiNest{2staticvoidprocedure(){3try{4int a=0;5int b=42/a;6}catch(java.lang.ArithmeticException e){7System.out.println("in procedure, catch ArithmeticException: "+e);8}9}10publicstaticvoidmain(String args[]){11try{12procedure();13}catch(java.lang.Exception e){14System.out.prin...