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Java's Interface and Haskell's type class: differences and similarities?
...t contain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object they are called on, and nothing else.
That means it's really hard to make things like add :: t -> t -> t with an interface, where it is polymo...
Finding the max/min value in an array of primitives using Java
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Using Commons Lang (to convert) + Collections (to min/max)
import java.util.Arrays;
import java.util.Collections;
import org.apache.commons.lang.ArrayUtils;
public class MinMaxValue {
public static void main(String[] args) {
char[] a = {'3', '5', '1', '4', '2'};
List...
What is a classpath and how do I set it?
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When programming in Java, you make other classes available to the class you are writing by putting something like this at the top of your source file:
import org.javaguy.coolframework.MyClass;
Or sometimes you 'bulk import' stuff by saying:
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“unmappable character for encoding” warning in Java
I'm currently working on a Java project that is emitting the following warning when I compile:
12 Answers
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How to use a wildcard in the classpath to add multiple jars? [duplicate]
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From: http://java.sun.com/javase/6/docs/technotes/tools/windows/classpath.html
Class path entries can contain the basename wildcard character *, which is considered equivalent to specifying a list of all the files in the directory wit...
Does Java SE 8 have Pairs or Tuples?
I am playing around with lazy functional operations in Java SE 8, and I want to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices.
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Why in Java 8 split sometimes removes empty strings at start of result array?
Before Java 8 when we split on empty string like
3 Answers
3
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The difference between the Runnable and Callable interfaces in Java
... Runnable and Callable interfaces when designing a concurrent thread in Java, why would you choose one over the other?
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Number of days in particular month of particular year?
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Java 8 and later
@Warren M. Nocos.
If you are trying to use Java 8's new Date and Time API, you can use java.time.YearMonth class. See Oracle Tutorial.
// Get the number of days in that month
YearMonth yearMonthObject = Ye...
Is there auto type inferring in Java?
Is there an auto variable type in Java like you have in C++?
6 Answers
6
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