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 …

In Java, arrays don't override toString(), so if you try to print one directly, you get the className + '@' + the hex of the hashCode of the array, as defined by Object.toString(): int[] intArray =...

An array initializer creates an array and provides initial values for all its components. and this is irrespective of whether the array is an instance variable or local variable or class variable.

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 …

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 …

The length of an array in Java is immutable. So, you need to copy the desired part into a new array. Use copyOfRange method from java.util.Arrays class:

I have an array of objects in Java, and I am trying to pull one element to the top and shift the rest down by one. Assume I have an array of size 10, and I am trying to pull the fifth element. The...

Why did you first add items into array and then convert it to string? Just iterate over tha array and copy them to Set.Then print new created set which holds unique values.

42 You can't remove an element from the basic Java array. Take a look at various Collections and ArrayList instead.

82 I have searched for a way to resize an array in Java, but I could not find ways of resizing the array while keeping the current elements. I found for example code like int[] newImage = new …