Jul 29, 2009 · This answer fails to properly address the question: "How do I declare and initialize an array in Java?" Other answers here show that it is simple to initialize float and int arrays when they …

Jul 15, 2009 · How do I determine whether an array contains a particular value in Java? Asked 16 years, 8 months ago Modified 7 months ago Viewed 2.9m times

The question asked for the simplest way in java, so it's a one liner, java current version is >14 and my solution is for at least java 8 ( so it is applicable ).

Oct 1, 2008 · Note that the returned type for asList() is a List using a concrete ArrayList implementation, but it is NOT java.util.ArrayList. It's an inner type, which emulates an ArrayList but actually directly …

There are two styles to convert a collection to an array: either using a pre-sized array (like c.toArray (new String [c.size ()])) or using an empty array (like c.toArray (new String [0]). In older Java versions …

While there are two excellent answers telling you how to do it, I feel that another answer is missing: In most cases you shouldn't do it at all. Arrays are cumbersome, in most cases you are better off using …

An empty array is an array with no elements. For non-empty arrays, elements are initialized to their default value.

Jan 26, 2010 · java.util.Collections.reverse() can reverse java.util.List s and java.util.Arrays.asList() returns a list that wraps the the specific array you pass to it, therefore yourArray is reversed after the …

Which is perfect becaue if we have a user input for example 111 the num array contains those values and each time we are temporarily puting each value into the temp variable and using it as our index …

The method javax.xml.bind.DatatypeConverter.printHexBinary(), part of the Java Architecture for XML Binding (JAXB), was a convenient way to convert a byte[] to a hex string. The DatatypeConverter …