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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;
}
...
Is it possible in Java to catch two exceptions in the same catch block? [duplicate]
...
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...
What's the reason I can't create generic array types in Java?
What's the reason why Java doesn't allow us to do
17 Answers
17
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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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What is the most efficient Java Collections library? [closed]
What is the most efficient Java Collections library?
12 Answers
12
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Why is JavaScript called JavaScript, since it has nothing to do with Java? [closed]
Since JavaScript is not derived from Java, why does it have "Java" in the name?
10 Answers
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Is Java “pass-by-reference” or “pass-by-value”?
I always thought Java uses pass-by-reference .
81 Answers
81
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Are there inline functions in java?
Is there a concept of inline functions in java, or its replaced something else? If there is, how is it used? I've heard that public , static and final methods are the inline functions. Can we create our own inline function?
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Should JAVA_HOME point to JDK or JRE?
I pointed the JAVA_HOME to C:\Program Files (x86)\Java\jre7 . It works fine. Afterwards, I unzipped ant and set up the environment variables related to Ant, I got the following error messages after typing "ant -version"
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