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How can I get current date in Android?
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FYI, the terribly troublesome date-time classes such as java.util.Date, java.util.Calendar, and java.text.SimpleDateFormat are now legacy, supplanted by the java.time classes built into Java 8 and later. See Tutorial by Oracle.
– Basil Bourque
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Didn't Java once have a Pair class? [duplicate]
Am I remembering incorrectly, or did Java, once upon a time, provide a Pair class as part of its API?
10 Answers
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“new” keyword in Scala
...w keyword when creating objects in Scala? Is it when we try to instantiate Java objects only?
3 Answers
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Java: Static Class?
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According to the great book "Effective Java":
Item 4: Enforce noninstantiability with a private constructor
- Attempting to enforce noninstantiability by making a class abstract does not work.
- A default constructor is generated only if a class contains no exp...
How to capitalize the first letter of a String in Java?
I am using Java to get a String input from the user. I am trying to make the first letter of this input capitalized.
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“java.lang.OutOfMemoryError: PermGen space” in Maven build [duplicate]
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Unfortunatelly it changes with Java versions, so some standardisation might be still required. (For example using %JAVA_1_7_HOME% like Apache Commons is doing (since toolchain might not be ready for beeing used in those situations).
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Is it possible to cast a Stream in Java 8?
Is it possible to cast a stream in Java 8? Say I have a list of objects, I can do something like this to filter out all the additional objects:
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Java: how do I get a class literal from a generic type?
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You can't due to type erasure.
Java generics are little more than syntactic sugar for Object casts. To demonstrate:
List<Integer> list1 = new ArrayList<Integer>();
List<String> list2 = (List<String>)list1;
list2.add("foo"); // perf...
Redeploy alternatives to JRebel [closed]
... at runtime. The features of DCEVM may be integrated in a future update of Java as part of JEP 159.
The binaries available on the original site are limited to Java 6u25 and to early versions of Java 7. The project has been forked on Github and supports recent versions of Java 7 and 8. The maintaine...
Where are static methods and static variables stored in Java?
...differ between versions of the same JVM. The above is based on HotSpot for Java 5 and 6 (those are basically the same) since at the time of answering I'd say that most people used those JVMs. Due to major changes in the memory model as of Java 8, the statements above might not be true for Java 8 Hot...