ArrayList is an heterogeneous collection of objects where each object can be indexed individually. While writing an application there could be some scenarios where we have ArrayList object filled with ...

1.a Add the following array as a global variable: int[] arr = { 28, 230, 9, 310,72} 1.b. Write a method, getRandom() that returns a random element from the above array. 1.c Add a setup method, from ...

But we can use the Java classes Integer and Boolean instead. We can still add numbers and truth-values to the ArrayLists (for example 17 or false) and we can read the elements from the ArrayList () ...