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Command-line Tool to find Java Heap Size and Memory Used (Linux)?
...here a Command-line Tool (Linux) to check Heap Size (and Used Memory) of a Java Application?
17 Answers
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Eclipse cannot load SWT libraries
...Unsatisfied Link Error and it will not open. I have recently installed the java JDK and Android SDK, could this be the problem? I followed this tutorial .
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...r out the temporary internet files folder.
– Michael Lang
Feb 27 '16 at 22:44
1
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Static Classes In Java
Is there anything like static class in java?
13 Answers
13
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Performance of Java matrix math libraries? [closed]
...ctave, Python and R, the time taken was around 4 seconds.
Using Jama with Java, the time taken was 50 seconds.
Using Colt and Parallel Colt with Java, the time taken was 150 seconds!
Using JBLAS with Java, the time taken was again around 4 seconds as JBLAS uses multithreaded ATLAS.
So for me it ...
C# “as” cast vs classic cast [duplicate]
... @Brian, @Paul: There's no runtime "black magic". The C# and VB.NET languages have specific logic built in to handle dealing with Nullable<T>. Comparisons against null are turned into .HasValue, and assignments to null are turned into =new Nullable<int>() (or whatever type is appr...
Java - How to create new Entry (key, value)
...u can just implement the Map.Entry<K, V> interface yourself:
import java.util.Map;
final class MyEntry<K, V> implements Map.Entry<K, V> {
private final K key;
private V value;
public MyEntry(K key, V value) {
this.key = key;
this.value = value;
}
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Is it possible in Java to catch two exceptions in the same catch block? [duplicate]
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Java 7 and later
Multiple-exception catches are supported, starting in Java 7.
The syntax is:
try {
// stuff
} catch (Exception1 | Exception2 ex) {
// Handle both exceptions
}
The static type of ex is the most ...
java.net.UnknownHostException: Invalid hostname for server: local
...st" instead, or perhaps 127.0.0.1 or ::1 (the last one is IPv6).
From the javadocs:
Thrown to indicate that the IP address
of a host could not be determined.
127.0.0.1or ::1 or "localhost" should always be the loopback interface, so if that doesn't work I'd be really surprised.
If there re...
Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh
I upgraded to the latest Java 7u40 on MacOS X and started getting the following message on the console when launching my application using Eclipse. The app works fine but I would like to find out the cause of the problem and hopefully a fix for it.
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