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: try { //code that throws subclass of RuntimeException throw new ChildRuntimeException(“try”); } catch (…
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 …
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 …
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 8 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
How To Check If A Method Exists At Runtime In Java?
How would one go about checking to see if a method exists for a class in Java? Would a try {…} catch {…} statement be good practice? Answer I assume that you want to check the method doSomething(String, Object). You might try this: This will not work, since the method will be resolved at compile-time. You really need to use