I want to fetch an HTML page and read in with BufferedReader. So I use try-with-resources to open it handles IOException this way: Is this a good pattern to catch and instantly throw? And what if I omit try at all and state that function throws IOException? If then any potentional memory leak? Much appreciate any advice! Answer A catch
Tag: try-catch
How can I get Java to read all text in file?
I am trying to get Java to read text from a file so that I can convert the text into a series of ascii values, but currently it only seems to be reading and retrieving the first line of the txt file. I know this because the output is much shorter than the text in the file. The text in
how pattern syntax exception works
how do I use the following statement in try n catch block to chk if the name is valid and display error msg if any? and how to use PatternSyntaxException Answer You don’t need a try…catch to check if the name is valid. The line you wrote: NAME_PATTERN.matcher(name).matches() returns a boolean, true if it matches and false if it doesn’t.
Assigning a TextComponent object differently based on try catch
I’m trying to take a String kd and either assign it to a TextComponent object, or if the string can be parsed into a Double value then assign it to a TextComponent using a DecimalFormat object. I …
Why RuntimeException is not caught in catch block if there are multiple catch blocks?
I am able to catch RuntimeException or subclass of it with below code: But I am getting error with below code and not able to catch RuntimeException in Exception catch block. I searched for the same type of questions but did not find a suitable answer. Can anyone explain why the behaviour is different? Answer In the second example you
How to apply user defined try catch block in java
I am a beginner and I’ve finished the basic Nim game. Now I want to apply the try catch block to the program to make sure the flow control is perfect. However, the resources I’ve seen for now is to catch the exception in the main method that all the methods created must be called in the try block to
Not Permitted to Use File Not Found Exception, but it is necessary
so I am having a strange problem where I am trying to use a try-catch, but the exception it not permitting. I will try to be as clear as I can describing the issue. Some background: Okay, so the assignment is to basically allow the user to write some files and also read them. And so I’m at the part
Throw exception vs Logging
Is the following way to code good practice? Moreover, should I.. use only the logger? throw only the exception? do both? I understand that with throw I can catch the exception in another part of the callstack, but maybe additional logging has some hidden benefits and is useful as well. Answer I use both in some cases, logging and throwing
Is it a known good practice to use a big try-catch per method in java? [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 9 years ago. Improve this question I’ve been interviewed recently and the interviewer wanted me to do a technical test to see my knowledge. After I finished
Java catch block, caught exception is not final
I am checking out the new features of Java SE7 and I am currently at this point: http://docs.oracle.com/javase/7/docs/technotes/guides/language/catch-multiple.html regarding the catch multiple feature, when I came across this statement: Note: If a catch block handles more than one exception type, then the catch parameter is implicitly final. In this example, the catch parameter ex is final and therefore you cannot