");break;}Thread.yield();try{TimeUnit.SECONDS.sleep(10);}catch(InterruptedException e){e.printStackTrace();}System.out.println("thread1==");}}};thread1.start();
在Java 中,try 块是异常处理机制的一部分 在Java 中,try 块是异常处理机制的一部分,通常与 catch 和 finally 块一起使用。try 块用于包含可能抛出异常的代码。如果在 try 块中发生异常,程序会跳转到相应的 catch 块中执行异常处理逻辑。 try 块的基本用法 java // 可能抛出异常的代码 } catch (ExceptionType...
Exceptions: the try/catch blockIn our introduction to exceptions, we showed how an exception object thrown by a method (in fact a constructor in the example) could be caught by the caller in a construction commonly called the try/catch block. In the block preceded by try, we put the ...
if(condition1) { // block 1 }elseif(condition2) { // block 2 }elseif(conditionN) { // block N }else{ // else block (optional, executed if all preceding conditions are false) } publicclassIfElseIfDemo{ public...
Try catch block is used for exception handling in Java. The code (or set of statements) that can throw an exception is placed inside try block and if the exception is raised, it is handled by the corresponding catch block. In this guide, we will see vari
As a good practice, it is better to avoid writing return statements in finally block. Catching multiple exceptions Before Java 7, in order to handle more than one exception, multiple catch blocks were used ordered from most specific to most general. The code is written to print the stack ...
In Java SE 7 and later, a single catch block can handle more than one type of exception. This feature can reduce code duplication and lessen the temptation to catch an overly broad exception. In the catch clause, specify the types of exceptions that block can handle, and separate each exce...
The try statement allows you to define a block of code to be tested for errors while it is being executed.The catch statement allows you to define a block of code to be executed, if an error occurs in the try block.The try and catch keywords come in pairs:...
Note that within the try block, a number of different method calls might generate the same exception, but you need only one handler. 3.Termination vs. resumption There are two basic models in exception handling theory. In termination (which is what Java and C++ support), you assume that the...
如果有一组具有相同基类的异常,你想使用同一方式进行捕获,那你直接 catch 它们的基类型。但是,如果这些异常没有共同的基类型,在 Java 7 之前,你必须为每一个类型编写一个 catch: // exceptions/SameHandler.java class EBase1 extends Exception {}