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What is object serialization?

...e "value" of the object. // These two will be serialized; private String aString = "The value of that string"; private int someInteger = 0; // But this won't since it is marked as transient. private transient List<File> unInterestingLongLongList; // Main method to...
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How to tell if a string is not defined in a Bash shell script

If I want to check for the null string I would do 12 Answers 12 ...
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NodeJS: Saving a base64-encoded image to disk

... console.log(err); }); new Buffer(..., 'base64') will convert the input string to a Buffer, which is just an array of bytes, by interpreting the input as a base64 encoded string. Then you can just write that byte array to the file. Update As mentioned in the comments, req.rawBody is no longer a...
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?

...ch as UTF-8, which the Python runtime will use whenever it has to decode a string buffer to unicode. This function is only available at Python start-up time, when Python scans the environment. It has to be called in a system-wide module, sitecustomize.py, After this module has been evaluated, the...
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Get the POST request body from HttpServletRequest

... Easy way with commons-io. IOUtils.toString(request.getReader()); https://commons.apache.org/proper/commons-io/javadocs/api-2.5/org/apache/commons/io/IOUtils.html share | ...
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Delegates: Predicate vs. Action vs. Func

...add; /*(int a, int b) => { Console.WriteLine(a + b); };*/ Func<string, string> mydel1 = p.conc; /*(string s) => { return "hello" + s; };*/ mydel(2, 3); string s1= mydel1(" Akhil"); Console.WriteLine(s1); Console.ReadLine(); ...
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Unable to generate an explicit migration in entity framework

...ure to check your startup project is one with your db context's connection string. I had this problem when I temporarily changed my startup project and didn't realize that the other project didn't have the same connection string. – Gage Trader Aug 3 '16 at 21:5...
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How to check if a specified key exists in a given S3 bucket using Java

... new AmazonS3Client(new ClasspathPropertiesFileCredentialsProvider()); String bucketName = getBucketName(); s3.createBucket(bucketName); S3Object object = s3.getObject(bucketName, getKey()); } catch (AmazonServiceException e) { String errorCode = e.getErrorCode(); if (!errorCode....
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Strange SQLAlchemy error message: TypeError: 'dict' object does not support indexing

... You have to give %% to use it as % because % in python is use as string formatting so when you write single % its assume that you are going to replace some value with this. So when you want to place single % in string with query allways place double %. ...
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Best way to compare dates in Android

I am trying to compare a date in a String format to the current date. This is how I did it (haven't tested, but should work), but am using deprecated methods. Any good suggestion for an alternative? Thanks. ...