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What are the -Xms and -Xmx parameters when starting JVM?
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The flag Xmx specifies the maximum memory allocation pool for a Java virtual machine (JVM), while Xms specifies the initial memory allocation pool.
This means that your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory. For example, s...
Difference in System. exit(0) , System.exit(-1), System.exit(1 ) in Java
I'd like to know the difference between the following in Java
11 Answers
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Is there an eval() function in Java? [duplicate]
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You can use the ScriptEngine class and evaluate it as a Javascript string.
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("js");
Object result = engine.eval("4*5");
There may be a better way, but this one works.
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How To fix white screen on app Start up?
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@Hagai L It's give me an error like as "java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity."
– TejaDroid
May 27 '16 at 9:46
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Instantiating a generic class in Java [duplicate]
I know Java's generics are somewhat inferior to .Net's.
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How to get a list of current open windows/process with Java?
... how do I get the current open windows or process of a local machine using Java?
14 Answers
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What is JNDI? What is its basic use? When is it used?
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What is JNDI ?
It stands for Java Naming and Directory Interface.
What is its basic use?
JNDI allows distributed applications to look up services in an abstract, resource-independent way.
When it is used?
The most common use case is to set u...
What is the Scala identifier “implicitly”?
...1) //
res23: AnyRef{def min(i: Int): Int} = 1
scala> .getClass
res24: java.lang.Class[_] = class scala.runtime.RichInt
Implicit Views can also be triggered when an expression does not conform to the Expected Type, as below:
scala> 1: scala.runtime.RichInt
res25: scala.runtime.RichInt = 1
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Converting array to list in Java
How do I convert an array to a list in Java?
19 Answers
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How to convert int[] into List in Java?
How do I convert int[] into List<Integer> in Java?
20 Answers
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