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When do you use Java's @Override annotation and why?
What are the best practices for using Java's @Override annotation and why?
27 Answers
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Using Enums while parsing JSON with GSON
...gisterTypeAdapter(Type, Object).
Following is one such approach.
import java.io.FileReader;
import java.lang.reflect.Type;
import java.util.List;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeseria...
What is a StackOverflowError?
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@JB King: Doesn't really apply to Java, where only primitive types and references are kept on the stack. All the big stuff (arrays and objects) is on the heap.
– jcsahnwaldt Reinstate Monica
Jan 23 '15 at 2:25
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JUnit tests pass in Eclipse but fail in Maven Surefire
...ests -->
<excludes>
<exclude>**/IT*Test.java</exclude>
<exclude>**/integration/*Test.java</exclude>
</excludes>
</configuration>
<executions>
<execution>
<id>integration...
When should we call System.exit in Java
In Java, What is the difference with or without System.exit(0) in following code?
10 Answers
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How to fix a locale setting warning from Perl?
...warning: Please check that your locale settings:
LC_ALL = (unset),
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
My guess is you used ssh to connect to this older host from a newer desktop machine. It's common ...
Exact difference between CharSequence and String in java [duplicate]
...you pasted: simply compile that, and have a look at the JVM bytecode using javap -v. There you will notice that both obj and str are references to the same constant object. As a String is immutable, this kind of sharing is all right.
The + operator of String is compiled as invocations of various St...
Why doesn't JUnit provide assertNotEquals methods?
...e expressive than assert*, but I don't think it's more expressive than the java expression you can put inside and out of the assert* expression in general (after all I can express anything in java code). It's a general problem I've started coming across with fluent-style APIs - every one is basicall...
Java 8 functional interface with no arguments and no return value
What is the Java 8 functional interface for a method that takes nothing and returns nothing?
3 Answers
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IllegalMonitorStateException on wait() call
I am using multi-threading in java for my program.
I have run thread successfully but when I am using Thread.wait() , it is throwing java.lang.IllegalMonitorStateException .
How can I make a thread wait until it will be notified?
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