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How to create correct JSONArray in Java using JSONObject
how can I create a JSON Object like the following, in Java using JSONObject ?
4 Answers
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What is simplest way to read a file into String? [duplicate]
...")).useDelimiter("\\Z").next();
System.out.println(content);
This uses a java.util.Scanner, telling it to delimit the input with \Z, which is the end of the string anchor. This ultimately makes the input have one actual token, which is the entire file, so it can be read with one call to next().
T...
When would you call java's thread.run() instead of thread.start()?
When would you call Java's thread.run() instead of thread.start() ?
14 Answers
14
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Convert a string representation of a hex dump to a byte array using Java?
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It doesn't work for the String "0". It throws an java.lang.StringIndexOutOfBoundsException
– ovdsrn
Jun 8 '11 at 20:06
51
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How to convert a byte array to a hex string in Java?
...ommons Codec, which uses very similar code.)
2k20 version, with respect to Java 9 compact strings:
private static final byte[] HEX_ARRAY = "0123456789ABCDEF".getBytes(StandardCharsets.US_ASCII);
public static String bytesToHex(byte[] bytes) {
byte[] hexChars = new byte[bytes.length * 2];
for...
Difference between jar and war in Java
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From Java Tips: Difference between ear jar and war files:
These files are simply zipped files
using the java jar tool. These files are
created for different purposes. Here
is the description of these files:
.jar ...
Recommended way to get hostname in Java
... best and most portable way to get the hostname of the current computer in Java?
11 Answers
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How do I tell Spring Boot which main class to use for the executable jar?
... pom:
<properties>
<!-- The main class to start by executing java -jar -->
<start-class>com.mycorp.starter.HelloWorldApplication</start-class>
</properties>
or
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot&...
Read url to string in few lines of java code
I'm trying to find Java's equivalent to Groovy's:
11 Answers
11
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What is the convention for word separator in Java package names?
...n.eng
com.apple.quicktime.v2
edu.cmu.cs.bovik.cheese
References
java.sun.com - Code Conventions/Naming
Note that in particular, anything following the top-level domain prefix isn't specified by the above document. The JLS also agrees with this by giving the following examples:
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