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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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Static Classes In Java
Is there anything like static class in java?
13 Answers
13
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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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Do Java arrays have a maximum size?
Is there a limit to the number of elements a Java array can contain? If so, what is it?
9 Answers
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How to bundle a native library and a JNI library inside a JAR?
...brary instead of the typical System.loadLibrary(String) which searches the java.library.path system property. This method makes installation much simpler as the user does not have to install the JNI library on his system, at the expense, however, that all platforms might not be supported as the spec...
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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Best way to store date/time in mongodb
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Dan Dascalescu
98.3k3636 gold badges263263 silver badges333333 bronze badges
answered Sep 23 '10 at 13:28
Niels van ...
Filtering a list based on a list of booleans
...i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False, True, False]*100
>>> %timeit list(compress(list_a, fil)) #winner
10000 loops, best of 3: 24.3 us per loop
>>&...
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...