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Executing multi-line statements in the one-line command-line?
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@RudolfOlah hope you know it by now but just for reference, you need to wrap the print statement for python3+ versions like: python -c "exec(\"import sys\nfor r in range(10): print('rob')\")"
– systrigger
Mar 12 at ...
Objective-C: Reading a file line by line
...exactly what you want to do.
NSInputStream allows you to read chunks of N bytes (very similar to java.io.BufferedReader), but you have to convert it to an NSString on your own, then scan for newlines (or whatever other delimiter) and save any remaining characters for the next read, or read more cha...
Tools for analyzing performance of a Haskell program
...gram with +RTS -s
$ time ./A +RTS -s
./A +RTS -s
749700
9,961,432,992 bytes allocated in the heap
2,463,072 bytes copied during GC
29,200 bytes maximum residency (1 sample(s))
187,336 bytes maximum slop
**2 MB** total memory in use (0 MB lost due to frag...
Split a string by a delimiter in python
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Java Serializable Object to Byte Array
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Prepare the byte array to send:
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream out = null;
try {
out = new ObjectOutputStream(bos);
out.writeObject(yourObject);
out.flush();
byte[] yourBytes = bos...
How to split a String by space
I need to split my String by spaces.
For this I tried:
15 Answers
15
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Showing line numbers in IPython/Jupyter Notebooks
...ter Notebooks indicate the line on which the error occurred; but (at least by default) no line numbers are indicated in Notebooks.
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How do I find a default constraint using INFORMATION_SCHEMA?
...ed for—"I'm looking to get [whether 'a given default constraint exists'] by the name of the constraint." I have edited my answer to make its direct question-satisfying nature much more clear. Hope that helps.
– ErikE
Sep 24 '15 at 20:03
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Remove by _id in MongoDB console
In the MongoDB console how can I remove a record by id? Here's my collection :
11 Answers
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What is the difference between up-casting and down-casting with respect to class variable
...CastException.
To call a superclass's method you can do super.method() or by performing the upcast.
To call a subclass's method you have to do a downcast. As shown above, you normally risk a ClassCastException by doing this; however, you can use the instanceof operator to check the runtime type of...