大约有 43,000 项符合查询结果(耗时:0.0318秒) [XML]

https://stackoverflow.com/ques... 

Sorting arraylist in alphabetical order (case insensitive)

...ArrayList, then it sorts it (ignoring the case). After that, the stream is converted to an array which is converted to an ArrayList. If you print the result using: System.out.println(sorted); you get the following output: [ananya, Athira, bala, jeena, Karthika, Neethu, Nithin, seetha, sudhin, S...
https://stackoverflow.com/ques... 

Difference between float and decimal data type

...nversion functions would often create tons of minute differences in values converted from ASCII to float when compared against those in, say, SQLServer. This is rarely true anymore. Testing is the best policy, as it's best to know for certain what the trade-offs are. – user1899...
https://stackoverflow.com/ques... 

Cast a Double Variable to Decimal

...ited to keep an exact value, so if you first add numbers together and then convert to Decimal you may get rounding errors. You may want to convert the numbers to Decimal before adding them together, or make sure that the numbers aren't floating point numbers in the first place. ...
https://stackoverflow.com/ques... 

Pandas convert dataframe to array of tuples

...I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe. ...
https://stackoverflow.com/ques... 

Convert python datetime to epoch with strftime

... If you want to convert a python datetime to seconds since epoch you could do it explicitly: >>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds() 1333238400.0 In Python 3.3+ you can use timestamp(...
https://stackoverflow.com/ques... 

Apache Commons equals/hashCode builder [closed]

...yd The Guava-way not only creates an array object for the varargs, it also converts ALL parameters to objects. So when you pass 10 int values to it then you will end up with 10 Integer objects and an array object. The commons-lang solution only creates a single object, no matter how many values you ...
https://stackoverflow.com/ques... 

Java Byte Array to String to Byte Array

...yte[] to string, string representation of byte[] to byte[] conversion... I convert my byte[] to a string to send, I then expect my web service (written in python) to echo the data straight back to the client. ...
https://stackoverflow.com/ques... 

Using LINQ to remove elements from a List

... for( int i = 0; i < size; i++ ) { ch = Convert.ToChar( Convert.ToInt32( Math.Floor( 26 * random.NextDouble() + 65 ) ) ); builder.Append( ch ); } return builder.ToString(); } } } Results below: Be patient, gen...
https://stackoverflow.com/ques... 

machine learning libraries in C# [closed]

...; example.Count; i++) { instance.setValue(attributes[i], Convert.ToDouble(example[i])); } instances.add(instance); } return instances; } } public static class Classifier { public static TClassifier Build<TClassifier>(TrainingSet training...
https://stackoverflow.com/ques... 

Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?

...a perfectly good way of doing integer powers (with doubles and then simply converting back to an integer, checking for integer overflow and underflow before converting). Second, another thing you have to remember is that the original intent of C was as a systems programming language, and it's quest...