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Declaring an unsigned int in Java
Is there a way to declare an unsigned int in Java?
11 Answers
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Gson ignoring map entries with value=null
...fault value for these fields as the JSON format is converted back into its Java form.
Here's how you would configure a Gson instance to output null:
Gson gson = new GsonBuilder().serializeNulls().create();
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java.lang.OutOfMemoryError: Java heap space
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If you want to increase your heap space, you can use java -Xms<initial heap size> -Xmx<maximum heap size> on the command line. By default, the values are based on the JRE version and system configuration. You can find out more about the VM options on the Java websit...
How to send HTTP request in java? [duplicate]
In Java, How to compose a HTTP request message and send it to a HTTP WebServer?
9 Answers
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Failed to load the JNI shared Library (JDK)
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You need a 64-bit trio:
64-bit OS
64-bit Java
64-bit Eclipse
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Eclipse returns error message “Java was started but returned exit code = 1”
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The error message points to a problem with your Java version. Do you have a JDK installed?
Try adding the following (noting the new line):
/!\ make sure, that the -vm option occurs before the -vmargs command.
Everything after -vmargs is passed directly to the JVM.
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Number of days between two dates in Joda-Time
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tl;dr
java.time.temporal.ChronoUnit.DAYS.between(
earlier.toLocalDate(),
later.toLocalDate()
)
…or…
java.time.temporal.ChronoUnit.HOURS.between(
earlier.truncatedTo( ChronoUnit.HOURS ) ,
later.truncated...
How does the String class override the + operator?
Why in Java you're able to add Strings with the + operator, when String is a class? In the String.java code I did not find any implementation for this operator. Does this concept violate object orientation?
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What are the benefits of Java's types erasure?
...t message with even just the excerpts mentioned thus far:
It's funny when Java users complain about type erasure, which is the only thing Java got right, while ignoring all the things it got wrong.
I get huge benefits (e.g. parametricity) and nil cost (alleged cost is a limit of imagination).
new T...
Why Maven uses JDK 1.6 but my java -version is 1.7
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add the following to your ~/.mavenrc:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/{jdk-version}/Contents/Home
Second Solution:
echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile
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