在Java方法中的return语句之后,finally块会执行吗?
是的,即使在方法中的return语句之后,也会执行finally块。
即使Java中发生了异常,finally块也将始终执行。如果我们在 finally块中显式调用System.exit()方法,则仅将不执行它。在极少数情况下,finally将不会执行,例如JVM崩溃,电源故障,软件崩溃等。除这些条件外,finally块将始终执行。
示例
public class FinallyBlockAfterReturnTest { public static void main(String[] args) { System.out.println(count()); } public static int count() { try { return 1; } catch(Exception e) { return 2; } finally { System.out.println("Finally block will execute even after a return statement in a method"); } } }
输出结果
Finally block will always excute even after a return statement in a method 1