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WebAPI Multiple Put/Post parameters
...
[HttpPost]
public string MyMethod([FromBody]JObject data)
{
Customer customer = data["customerData"].ToObject<Customer>();
Product product = data["productData"].ToObject<Product>();
Employee employee = data["employeeDat...
how to get the one entry from hashmap without iterating
...ution is to use TreeMap (you asked for other data structures).
TreeMap<String, String> myMap = new TreeMap<String, String>();
String first = myMap.firstEntry().getValue();
String firstOther = myMap.get(myMap.firstKey());
TreeMap has an overhead so HashMap is faster, but just as an exa...
Which types can be used for Java annotation members?
...n 9.6.1 of the JLS. The annotation member types must be one of:
primitive
String
an Enum
another Annotation
Class
an array of any of the above
It does seem restrictive, but no doubt there are reasons for it.
Also note that multidimensional arrays (e.g. String[][]) are implicitly forbidden by the a...
Java regex capturing groups indexes
...oup numbers are used in back-reference \n in pattern and $n in replacement string.
In other regex flavors (PCRE, Perl), they can also be used in sub-routine calls.
You can access the text matched by certain group with Matcher.group(int group). The group numbers can be identified with the rule stat...
How to Concatenate Numbers and Strings to Format Numbers in T-SQL?
...
You must cast your integers as string when trying to concatenate them into a varchar.
i.e.
SELECT @ActualWeightDIMS = CAST(@Actual_Dims_Lenght AS varchar(10))
+ 'x' +
CAST(@Actual_Dims_Width ...
How to check if a specified key exists in a given S3 bucket using Java
... new AmazonS3Client(new ClasspathPropertiesFileCredentialsProvider());
String bucketName = getBucketName();
s3.createBucket(bucketName);
S3Object object = s3.getObject(bucketName, getKey());
} catch (AmazonServiceException e) {
String errorCode = e.getErrorCode();
if (!errorCode....
android edittext onchange listener
...d afterTextChanged(Editable arg0) {
new SearchTask().execute(seq.toString().trim());
}
});
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Reuse a parameter in String.format?
.... The first argument is referenced by "1$", the second by "2$", etc.
String.format("%1$s %1$s %1$s %1$s %1$s %1$s", hello);
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Kotlin: how to pass a function as parameter to another?
...
Use :: to signify a function reference, and then:
fun foo(m: String, bar: (m: String) -> Unit) {
bar(m)
}
// my function to pass into the other
fun buz(m: String) {
println("another message: $m")
}
// someone passing buz into foo
fun something() {
foo("hi", ::buz)
}
...
离线版启动超时，有报错日志 - App Inventor 2 离线版 - 清泛IT社区，为创新赋能！
...ources\app.asar.unpacked\OpenJDK\bin\java, --add-opens=java.base/java.lang=ALL-UNNAMED, -Xmx4G, --add-opens, java.base/java.net=ALL-UNNAMED, --add-opens, java.base/sun.net.www.protocol.http=ALL-UNNAMED, --add-opens, java.base/sun.net.www.protocol.https=ALL-UNNAMED, -Dfile.encoding=UTF-8, -classpath,...