Dec 27, 2009 · In Java, an Array stores its length separately from the structure that actually holds the data. When you create an Array, you specify its length, and that becomes a defining attribute of the …

May 19, 2014 · What are the different ways that I can access the length of an array, a collection (List, Set, etc.), and a String object? Why is it different?

Nov 25, 2013 · size() is a method specified in java.util.Collection, which is then inherited by every data structure in the standard library. length is a field on any array (arrays are objects, you just don't see …

Mar 2, 2015 · How to find integer array size in java Asked 10 years, 11 months ago Modified 7 years, 3 months ago Viewed 147k times

int arrayLength = arr.length; Will arrayLength contain 10, the allocated size of the array or 4, the count of elements that have been explicitly assigned?

5 Java allows you to create "ragged arrays" where each "row" has different lengths. If you know you have a square array, you can use your code modified to protect against an empty array like this:

Mar 12, 2014 · for (int j = 0; j < bytes.length(); j++) { b = bytes[j]; } b will store each byte of my array, but I can't seem to get the length of the array correctly.

Feb 1, 2011 · I am having a problem with the following lines where car is a String array which has not been initialized/has no elements. String car []; System.out.println(car.length); What is a possible …

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 …

The above answers work. Also, if for some reason you need to know the array size before you actually create the array (for pre-processing or some such activity), you can get the string's length (which will …