Tagged Questions

1
vote
6answers
62 views

Should you catch all exceptions in your main method

Is it correct to catch everything into the main? If not, why? public static void main(String[] args) { try { // A lot // of // calls } catch (Exception e) { ...
2
votes
3answers
104 views

C# throw statement redundant?

I have a code that looks like this (sorry for the Java bracket style): class SomeClass { public static void doSomethingRisky() { try { SomeRiskyFunction(); } catch ...
8
votes
4answers
126 views

Having a try-catch block, should you place ALL statements in it or just the unsafe one?

Suppose save throws and i is used only for save. Are the following code fragments the same? Please consider sematics, performance and other aspects. void bob(){ int i = calculate(); try { ...
0
votes
2answers
22 views

Struts2 customExceptionMappingInterceptor

I already searched here and on internet but I couldn't find a solution for my problem. I would like to use my custom exceptionHandler to intercept all the java exceptions and to treat them in a ...
0
votes
1answer
24 views

Launch a pdf file from java

I am trying to open a pdf file from the following code. try { String currentDir = System.getProperty("user.dir"); currentDir = currentDir+"/Report.pdf"; ...
4
votes
3answers
140 views

Exception Handling guideline- Python vs Java

I am original Java developer, for me, checked Exception in Java is obviously/easy enough for me to decide to catch or throw it to the caller to handle later. Then it comes Python, there is no checked ...
-1
votes
2answers
69 views

Why return null after catching an Exception? [closed]

I've encountered some code which is catching RestClientException and then returning null. I think this is bad practice ? Why would a developer (who has since moved on) do this ? The method in which ...
0
votes
4answers
47 views

removing last element in arraylist exception [closed]

at first I was having issues removing an element in an arraylist if it was the only one on the list, which i over came by simply setting all the varibles of the element to null/0 if it is the only ...
6
votes
2answers
85 views

Java Exception Classes

I am new to java and I was looking at exception handling. When we catch java exceptions, we declare and use an Object of the Exception class without initializing it i.e., catch(NullPointerException e) ...
1
vote
1answer
41 views

Find Exception type

If I have the following code: try { //some offensive code } catch (Exception e) { String type = //get type of e Assert.fail(type + " thrown."); } Is there a way I can get the type ...
2
votes
5answers
94 views

FileNotFoundException in java

Im developing a simple android application which needs a text file access! Im getting filenotfoundexception eventhough i specified the absolute path of the file in File constructor.. My code is `File ...
2
votes
3answers
44 views

Which exception to throw for invalid input which is valid from client perspective

I am writing code to find and intersection of 2 lines. When slopes of the lines are equal they dont intersect. But on the other hand an input with slopes of equal value is completely valid. public ...
0
votes
1answer
36 views

Using Anonymous thread for catching Exceptions

I asked around regarding catching checked exceptions in the context of a thread; the accepted answer was to use Callables and Futures. But I realized that I can simply wrap the "working" method with ...
-2
votes
1answer
85 views

Try/Catch statement not working [closed]

I am having some trouble with this particular try/catch block. It should work, but every time I enter a letter, I still get a NumberFormatException. Can anyone identify the problem with this code? ...
0
votes
1answer
66 views

Exception causing Log.e() to be skipped

I have the following code that I'm trying to debug: public Cursor getUpdateTimestamps() { Cursor timestamps; try { // int j = 3 / 0; // This will throw a divide-by-zero exception ...

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