powershell try catch

1 The results of the following program output are correct ()public class Test1 {public static String output = "";public static void foo (int i){try{if (i = = 1){throw new Exception ();}}catch (Exception e) {output+= "2";Return}finally {output+= "3";}output+= "4";}public static void Main (string[] args) {Foo (0);Foo (1);SYSTEM.OUT.PRINTLN (output);}}A ErrorB 342C 34234D 3423Note: for

Try: Is the code you want to protect, called a block. Protection block If an exception occurs, an exception object is automatically generated and thrown. Note that the object is thrown. Catch: Catch a specific exception and handle it appropriately. Throw: can throw/generate an exception directly, causing the control process to go to the

As far as possible to ensure the robustness of the code under the premise One more layer of try-catch can actually handle some surprises. But all CException-based exceptions cannot be directly delete The following is the wrong way of writing Try { } catch (CException *e) { delete e; }Originally thought that th

Think that try catch is the Eclipse compiler automatic reminder add, if not added, Eclipse write program will error, and will remind you to add. Programmers don't have to worry about the problem. That's all. But he has a more important role to play. Therefore, with a try catch, the program does not report errors

When an exception occurs, execution terminates and the control is handed over to the nearest exception-handling statement, which means that it cannot be performed according to the normal design idea. While some resource cleanup, such as closing a file, must always be performed, even if there is an exception, the finally block can be used to implement the feature. Finally blocks are used to clear any resources allocated in a try block and to run the co

Try-catch in-depth understandingLet's look at an example (example 1) to explain the process of try, catch, finally in Java 1234567891011121314151617181920212223 publicclassTryCatchFinally {@SuppressWarnings("finally")publicstaticfinal String test() {String t ="";tr