大约有 7,540 项符合查询结果（耗时：0.0228秒） [XML]
JUnit 4 compare Sets
...
Uhm, how come I get: java.lang.AssertionError: expected: java.util.Hashtable<{CompanyName=8PKQ9va3nW8pRWb4SjPF2DvdQDBmlZ, Ric=sZwmXAdYKv, Category=AvrIfd, QuoteId=4342740204922826921}> but was: java.util.Hashtable<{CompanyName=8PKQ9va3nW...
How to add new elements to an array?
...st<String>. It's dynamically growable, unlike arrays (see: Effective Java 2nd Edition, Item 25: Prefer lists to arrays).
import java.util.*;
//....
List<String> list = new ArrayList<String>();
list.add("1");
list.add("2");
list.add("3");
System.out.println(list); // prints "[1, 2...
Java Enum Methods - return opposite direction enum
... cannot be instantiated, but it illustrates my point). Is this possible in Java?
6 Answers
...
Why switch is faster than if
Lots of Java books describe the switch statement as being faster than the if else statement. But I did not find out anywhere why switch is faster than if .
...
Differences between Ant and Maven [closed]
...r used either. I understand that they are used to automate the building of Java projects, but I do not know where to start from.
...
Java: notify() vs. notifyAll() all over again
...d notifyAll() " then a lot of explanations will pop up (leaving apart the javadoc paragraphs). It all boils down to the number of waiting threads being waken up: one in notify() and all in notifyAll() .
...
Hadoop “Unable to load native-hadoop library for your platform” warning
... native to your HADOOP_OPTS like this:
export HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$HADOOP_HOME/lib/native"
PS: Thank Searene
share
|
improve this answer
|
follow...
How to configure MongoDB Java driver MongoOptions for production use?
...eb looking for best practices for configuring MongoOptions for the MongoDB Java driver and I haven't come up with much other than the API. This search started after I ran into the "com.mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db
connection" error and by increasing the connections/...
Spring RestTemplate - how to enable full debugging/logging of requests/responses?
...on of ClientHttpRequestInterceptor to trace request and response:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpRequest;
import org.springframework.http.clie...
Java Round up Any Number
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4540684%2fjava-round-up-any-number%23new-answer', 'question_page');
}
);
Post as a guest
Na...