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Looking for simple Java in-memory cache [closed]
I'm looking for a simple Java in-memory cache that has good concurrency (so LinkedHashMap isn't good enough), and which can be serialized to disk periodically.
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What is the difference between Eclipse for Java (EE) Developers and Eclipse Classic?
What is the difference between Eclipse for Java (EE) Developers and Eclipse Classic?
1 Answer
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Where in memory are my variables stored in C?
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John BodeJohn Bode
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How can I get current date in Android?
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FYI, the terribly troublesome date-time classes such as java.util.Date, java.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle.
– Basil Bourque
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kill -3 to get java thread dump
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With Java 8 in picture, jcmd is the preferred approach.
jcmd <PID> Thread.print
Following is the snippet from Oracle documentation :
The release of JDK 8 introduced Java Mission Control, Java Flight Recorder, and jcmd ...
Deprecated Java HttpClient - How hard can it be?
...leHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import java.io.IOException;
Usage:
HttpClient httpClient = HttpClientBuilder.create().build();
EDIT (after Jules' suggestion):
As the build() method returns a CloseableHttpClient which is-a AutoClosable, you can place the decl...
How to compare two Dates without the time portion?
I would like to have a compareTo method that ignores the time portion of a java.util.Date. I guess there are a number of ways to solve this. What's the simplest way?
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Understanding checked vs unchecked exceptions in Java
Joshua Bloch in " Effective Java " said that
21 Answers
21
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Didn't Java once have a Pair class? [duplicate]
Am I remembering incorrectly, or did Java, once upon a time, provide a Pair class as part of its API?
10 Answers
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Java: Static Class?
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According to the great book "Effective Java":
Item 4: Enforce noninstantiability with a private constructor
- Attempting to enforce noninstantiability by making a class abstract does not work.
- A default constructor is generated only if a class contains no exp...