Antwort Should you always catch exceptions? Weitere Antworten – Should you always catch an exception

Should you always catch exceptions?
Catch the most specific exception first

If this rule is not followed, the JVM will generate a compile time error with a fairly cryptic error message that is difficult to understand. Make your software development life easier, and always catch the most specific exception in your code first.It is only good practice to catch a specific exception if it can actually be handled by the catch block. Very often, programmers assume that the fault can be handled at all, close to the point of occurrence. This is often wrong.The Try Catch in java statements allows you to define a block of code to be tested for exceptions (errors) while it is being executed. The Try Catch in Java always occurs in pairs; the catch statement allows you to define a block of code to be executed, if an error occurs in the try block.

What is exception in programming : An exception is an unexpected behavior (wrong or not) that occurs during software execution. This can interrupts the normal flow of execution and needs proper handling. These “unexpected behaviors” may be in methods of your own software or third-party libraries/components.

When should you not catch exceptions

  1. Do not use try-catch unless you actually can handle specific exceptions.
  2. If you need to catch general exceptions, always rethrow them.
  3. If possible to handle errors without exceptions, do so only for perf critical code and only if profiling will show you exceptions are the top issue.

Is it good practice to catch throwable : Don't Catch Throwable

You can use it in a catch clause, but you should never do it! If you use Throwable in a catch clause, it will not only catch all exceptions; it will also catch all errors. Errors are thrown by the JVM to indicate serious problems that are not intended to be handled by an application.

In particular, do not use exceptions for control flow. throw is not simply an alternative way of returning a value from a function (similar to return ). Doing so will be slow and will confuse most C++ programmers who are rightly used to seeing exceptions used only for error handling.

The answer is “No, it is not mandatory that each try block must be followed by a catch block in Java.” After try block, we can use either “catch” block or “finally” block. Generally, thrown exceptions should be declared in the thrown clause of the method.

Should you use try catch in Java

Most tasks/routines you write in your software will not need a try/catch block. If you are worried the method you are coding is getting too complex to check for all possibilities, try wrapping some of the code that has the possibility to generate an exception in known exception types and start that way.Exceptions provide the means to separate the details of what to do when something out of the ordinary happens from the main logic of a program.Exception handling is the process of responding to unwanted or unexpected events when a computer program runs. Exception handling deals with these events to avoid the program or system crashing, and without this process, exceptions would disrupt the normal operation of a program.

Overuse of try-catch blocks can lead to cluttered code and make it difficult to understand what's happening in your program. So, how do you determine when to use try-catch blocks The answer is simple: only use them when you expect an exception to occur and you need to handle it in a specific way.

Is it a good practice to catch runtime exceptions : The answer is "hardly ever". Rules of Thumb: A method can detect and throw a RuntimeException when it's encountered an error in the virtual machine runtime, however, it's typically easier to just let the virtual machine detect and throw it.

Should I throw exception in catch : If method can't handle the exception properly you should throw it. You generally throws an exception when you want to notify the caller of the method of some failures. As others have said, as a general rule, you should catch an exception when you can actually handle it, otherwise, just throw it.

When should you avoid try-catch

  1. Do not use try-catch unless you actually can handle specific exceptions.
  2. If you need to catch general exceptions, always rethrow them.
  3. If possible to handle errors without exceptions, do so only for perf critical code and only if profiling will show you exceptions are the top issue.


Exception handling is the process of responding to unwanted or unexpected events when a computer program runs. Exception handling deals with these events to avoid the program or system crashing, and without this process, exceptions would disrupt the normal operation of a program.But you should not do it for the following three reasons: You don't have enough information about the use case the caller of your method wants to implement. The exception might be part of the expected behavior and handled by the client. In this case, there might be no need to log it.

Should I catch all exceptions Java : The good practice recommends catching specific exceptions so the program can handle different situations well. Java doesn't prohibit you from catching one for all, but when doing so, you should have good reasons to do that.