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node.js - How to understand Java's input stream and output stream?

{Code...} Judging from this code, a URL is requested and the content is read and displayed. But why is getInpu...

From [Javadiscussion group] 2017-06-15 09:21:34 0  1  806

The relationship between obtaining file input stream and memory usage in JAVA

A Java program obtains the input stream of a file, such as the input stream of a 50M text file. At this time, ...

From [Javadiscussion group] 2017-06-15 09:21:27 0  3  1154

kafka cannot connect to write

When calling the producer remotely to write data, the following error occurs: ERROR Error when sending message...

From [Javadiscussion group] 2017-06-15 09:21:24 0  1  1033

javascript - The logic of the sorting function of the WeChat mini program e-commerce search page

Currently developing the business logic of the search page. Since I rarely made interfaces before, the busines...

From [Javadiscussion group] 2017-06-15 09:21:22 0  3  1123

In Gao Qi's Java video, how can this statement that directly assigns an int type value to an Integer object pass compilation?

I recently read Gao Qi's Java 300 tutorial, and there is a code sentence that Teacher Gao briefly mentioned, b...

From [Javadiscussion group] 2017-06-15 09:21:19 0  4  1096

java - Spring boot mybatis custom converter problem

When spring boot is integrated with mybatis, the custom typehandler (converter) is not called. First, the tabl...

From [Javadiscussion group] 2017-06-14 10:54:51 0  1  1437

java - regular expression problem

I want to use regular expressions to extract the following information. How should I write it? {code...}

From [Javadiscussion group] 2017-06-14 10:53:06 0  1  1038

javascript - How to use js to prevent Firefox from popping up the download box when downloading attachments!

1. Click the download link and let it download directly, otherwise the user chooses the save path! Functions s...

From [Javadiscussion group] 2017-06-14 10:53:05 0  1  1005

java - idea maven install is successful but dependence is not displayed

The flume source code of the official website is down. Use idea to open the install and pass it, but dependenc...

From [Javadiscussion group] 2017-06-14 10:53:04 0  1  925

How to sort objects of different classes in java

Assume that two classes A and B have a common attribute date. I want to sort the two List<A> and...

From [Javadiscussion group] 2017-06-14 10:52:58 0  3  966

Java uses telnet to call remote cmd command

代碼如下： import java.io.IOException;import java.io.InputStream;import java.io.PrintStream;import java.io.Unsuppor...

From [Javadiscussion group] 2017-06-14 10:52:56 0  1  1189

How to get the time of last month through LocalDate in java8

As the title says, LocalDate has many methods about next, so how can I get the time of last month through Loca...

From [Javadiscussion group] 2017-06-14 10:52:53 0  2  1202

java - What is the shortcut key to collapse all methods in intellij idea?

The following is the uncollapsed state after clicking collapse: After opening this js, all methods are expande...

From [Javadiscussion group] 2017-06-14 10:52:40 0  1  2658

java - I want to make a groovy debugger. Where is the relevant open source code or information?

I mixed some logic made by dynamic groovy code into a system, but later found that there were too many scripts...

From [Javadiscussion group] 2017-06-14 10:52:33 0  1  813

git checkout specific version failed

git clone https://github.com/lnas01/rel...git checkout ff0bb84 error: pathspec 'ff0bb84' did not match any fil...

From [Javadiscussion group] 2017-06-14 10:52:28 0  1  891