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Use of class definitions inside a method in Java
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Any idea in which version of Java local classes where introduced?
– Sled
Nov 6 '14 at 17:32
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How can I concatenate two arrays in Java?
I need to concatenate two String arrays in Java.
61 Answers
61
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How can I generate a list or array of sequential integers in Java?
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With Java 8 it is so simple so it doesn't even need separate method anymore:
List<Integer> range = IntStream.rangeClosed(start, end)
.boxed().collect(Collectors.toList());
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What is the difference between & and && in Java?
I always thought that && operator in Java is used for verifying whether both its boolean operands are true , and the & operator is used to do Bit-wise operations on two integer types.
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Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
...ne can provide some insight as to what's fundamentally different about the Java Virtual Machine that allows it to implement threads nicely without the need for a Global Interpreter Lock (GIL), while Python necessitates such an evil.
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Java: Getting a substring from a string starting after a particular character
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This can also get the filename
import java.nio.file.Paths;
import java.nio.file.Path;
Path path = Paths.get("/abc/def/ghfj.doc");
System.out.println(path.getFileName().toString());
Will print ghfj.doc
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Java Interfaces/Implementation naming convention [duplicate]
...ck. Not ITruck because it isn't an ITruck it is a Truck.
An Interface in Java is a Type. Then you have DumpTruck, TransferTruck, WreckerTruck, CementTruck, etc that implement Truck.
When you are using the Interface in place of a sub-class you just cast it to Truck. As in List<Truck>. Putti...
Why not infer template parameter from constructor?
...ndo Never mind, I had no idea this was valid: coliru.stacked-crooked.com/a/98c36b8082660941
– Kyle Strand
Feb 26 '18 at 22:11
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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
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Sockets: Discover port availability using Java
...rammatically determine the availability of a port in a given machine using Java?
10 Answers
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