An array in Java is a type of variable that can store multiple values ... using the add method. We also need to import ArrayList from the Java.util package. I would get a different output each ...

average(values); average(new double[] { 1.0, 2.0, 3.0, 4.0 }); Java 5 introduced a variable arguments (varargs) feature to reduce the clutter when passing an array to a method or constructor.

So to get the size of an ArrayList, you call its size method. However, an Arraylist is not the same thing as a Java array. To get the size of a Java array, you use the length property. To get the size ...