This is that ArrayList<T> is for. Java arrays conform to the traditional "array" concept (in interface and generally in implementation); they are of static size.

How do you find the size of an array in Java? Just use the array length property. But there are some 'gotchas' to be aware of. Read this Java array length tutorial and stay clear of runtime errors ...

To find the size of a Java array, query an array’s length property. The Java array size is set permanently when the array is initialized. The size or length count of an array in Java includes both ...

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

Given an array of length N and an integer x, you need to find and return the first index of integer x present in the array. Return -1 if it is not present in the array. First index means, the index of ...

How to Assign Random Numbers to an Array in Java. Java has a "Random" class that lets you generate a random number you use to implement calculations in your Java source code.

Question-27-leetcode-using-java Given an integer array nums and an integer val, remove all occurrences of val in nums in-place. The order of the elements may be changed. Then return the number of ...