【举例】:利用try...catch...finally 结构进行异常处理 代码语言:javascript 复制 System.out.println("AAAA");try{int result=10/0;System.out.println("计算="+result);}catch(ArithmeticException e){e.printStackTrace();}finally{System.out.println("===");}System.out.println("BBBB"); 以上,我们发...
这里面try语句里面会抛出 java.lang.NumberFormatException,所以程序会先执行catch语句中的逻辑,t赋值为catch,在执行return之前,会把返回值保存到一个临时变量里面t ',执行finally的逻辑,t赋值为finally,但是返回值和t',所以变量t的值和返回值已经没有关系了,返回的是catch 例4: publicclassTryCatchFinally { @Suppre...
publicclassTryCatchFinally{@SuppressWarnings("finally")publicstaticfinalStringtest(){Stringt="";try{t="try";Integer.parseInt(null);returnt;}catch(Exceptione){t="catch";Integer.parseInt(null);returnt;}finally{t="finally";//return t;}}publicstaticvoidmain(String[]args){System.out.print(TryCatch...
}catch(Exceptione) { System.out.println("catch"); return"return in catch"; }finally{ System.out.println("finally"); return"return in finally"; } } 调用test()的结果: try finally return in finally 例子2 无异常,try中的return会导致提前返回 publicstaticStringtest() { try{ System.out.printl...
TryCatchFinally类属于com.amazonaws.services.simpleworkflow.flow.core包,在下文中一共展示了TryCatchFinally类的13个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。 示例1: executeActivityUpdatingInvocationHistory ...
1 前言 这三个关键字常用于捕捉异常的一整套流程,try 用来确定需要捕获异常的代码的执行范围,catch 捕捉可能会发生的异常,finally 用来执行一定要执行的代码块。...
try-catch try{}catch(Exceptione){} try-finally try{}finally{} 2. How an exception floats in Java? Under normal circumstances, when there is an exception occurred during runtime, JVM wraps the error information in an instance of the sub-type ofThrowable. This exception object is similar to...
try{return;}中有return语句时,也有finally语句时,执行完finally后直接执行try中的return语句返回。不会再执行finally后的程序。如图所示: 有关嵌套try catch public class Try { @Test public static int test1(){ int a = 0; int b = 2; try { ...
java中try cath finally的执行顺序 1、当try 或catch块中遇到return语句 2、当catch 或 finally抛出异常 3、当在finally之前调用了System.exit(int)方法 总结: 前言 在异常处理中try catch finally的执行顺序大家都知道是按顺序执行,如果try中代码没有异常,则进入finally中,如果try中有异常则执行catch 再执行finally...
Java try catch finally blocks helps in writing the application code which may throw exceptions in runtime and gives us chance to recover from the exception.