java8
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java8-stream-flatMapThe first one at code a below can correctly output the result as follows:; B at the int ar...2 answers -
Are design patterns used in lambdaFor example, in learning lambda and handing in an experimental assignment, I asked such qu...1 answers -
How can Java instantiate classes in another Maven project through reflection?Code:'Try '{ seleniumBase sb = (seleniumBase)Class.forName("com.github.wycm.AP...2 answers -
How to value identityhashmap in this case?The values of the two holidays are exactly the same, but they can't be obtained. Looki...2 answers -
How to read FileInputStream again?I'm doing the file upload function. After the file is uploaded, I encode the file MD5 ...2 answers -
On the problem of Java object conversion, two objects have a different attribute type, how to convert each otherThere are three classes class DeviceFormatA { private Integer id; private String name; pri...4 answers -
In Java BeanInfo.getPropertyDescriptors Is the return value changeable?There is such a class: public class SimpleTestBeanA { private Long id; private Integer age...0 answers -
How to get the expression of functionIn order to do a simple test and test the execution efficiency of different implementation...1 answers -
How does lambda expression execute in Java 8 functional programming?How does lambda expression execute in Java 8 functional programming? public static <T&g...1 answers -
Java8 lambda ArrayList finalLet me ask you a question. Now we use the lambda expression of java8, and then an ArrayLis...2 answers -
Java 8 upload file small example error!After checking for similar errors, I didn't judge whether to create a path (the follow...1 answers -
Where does weakhashmap link hash conflict nodes to linked lists?Question: when reading the source code of weakhashmap in java8, I found a problem: when th...2 answers -
Java client and server communicate with each other and send files to each otherI wrote one, the data flow of the file conflicts with the data flow of the message, or the...0 answers -
Java8: why can this writing be passed as a thread object parameter?//Java 8 can pass methods as parameters, but this endofwashing method does not return Thre...2 answers -
use java.util.function The method implementation code in is ten times slower than normal java code?Problem description 今天学习了一下java.util.function中的几个方法,觉得很帅很优雅,于是学的过程中照搬着把我以前的 A code to dete...3 answers