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Why are we not to throw these exceptions?
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Exception is the base type for all exceptions, and as such terribly unspecific. You shouldn’t ever throw this exception because it simply does not contain any useful information. Calling code catching for exceptions couldn’t disambiguate the intentionally thrown excep...
Regex to check whether a string contains only numbers [duplicate]
I get false on both "123" and "123f" . I would like to check if the hash only contains numbers. Did I miss something?
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What is java interface equivalent in Ruby?
Can we expose interfaces in Ruby like we do in java and enforce the Ruby modules or classes to implement the methods defined by interface.
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What does the “__block” keyword mean?
...eated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these variables don't show outside the block. When they are marked with __block, the modifications done inside the block are also visib...
How to fix committing to the wrong Git branch?
...mit to the wrong branch.
How do I undo the last commit in my master branch and then take those same changes and get them into my upgrade branch?
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Pipe output and capture exit status in Bash
I want to execute a long running command in Bash, and both capture its exit status, and tee its output.
15 Answers
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Why is a combiner needed for reduce method that converts type in java 8
I'm having trouble fully understanding the role that the combiner fulfils in Streams reduce method.
4 Answers
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.NET WPF Remember window size between sessions
...ifferent type or structure will be needed.
Initialise the first two to 0 and the second two to the default size of your application, and the last one to false.
Create a Window_OnSourceInitialized event handler and add the following:
this.Top = Properties.Settings.Default.Top;
this.Left = Propert...
Setting default values for columns in JPA
Is it possible to set a default value for columns in JPA, and if, how is it done using annotations?
18 Answers
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Running shell command and capturing the output
I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line.
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